Last winter I drove 40 minutes to the closest lap pool, paid for a membership I barely used, and still could not swim between November and March. That was the moment I started seriously looking at the best swim spas for home fitness — and after six weeks of research, two dealer test-soaks, and one too many spec sheets, here is what I wish someone had handed me on day one.
A swim spa is a compact, self-contained pool that uses a powerful water current to let you swim in place against resistance. You get the fitness benefits of a 40-foot lap pool, the recovery benefits of a hot tub, and a footprint that fits in most backyards. In 2026, the category is booming because homeowners are done trading time and gym fees for a real swim lane at home.
This guide covers ten swim spa models built around home fitness, organized so you can compare them by current type, dual-zone capability, footprint, and price tier. I also break down installation costs, monthly energy bills, and the four most common problems buyers report — the same complaints that come up over and over on r/swimspa and pool forums. If you only have five minutes, jump to the Quick Overview table or the Top 3 cards below.
Table of Contents
Top 3 Picks for Best Swim Spas for Home Fitness for September 2026
Dual Zone Swim Spa with…
- Dual-zone temperature control
- 5HP swim current with three pumps
- 72 adjustable hydrotherapy jets
Acrylic Swim Spa Pool with…
- Independent dual-zone temperature
- Multi-speed counter current
- Low-impact aquatic exercise
Commercial Swim Spa with…
- 98 water jets plus 16 air jets
- Stand-up massage wall
- Built-in swim machine
These three cover roughly 80% of the home-fitness swim spa use cases I hear about. If none of them match your yard size or training style, the full table and ten individual reviews below will get you the rest of the way.
Quick Overview: 10 Best Swim Spas for Home Fitness in September 2026
| Product | Specs | Action |
|---|---|---|
| Dual Zone Swim Spa with Endless Pool and Hot Tub Combo |
|
Check Latest Price |
| Acrylic Swim Spa Pool with Dual Zone |
|
Check Latest Price |
| Commercial Swim Spa with 98 Water Jets and 16 Air Jets |
|
Check Latest Price |
 Backyard Luxury Swim Spa |
|
Check Latest Price |
 Commercial Grade Swim Spa |
|
Check Latest Price |
 Hydrotherapy Swim Spa for Seniors Rehabilitation |
|
Check Latest Price |
 Adjustable Counter Current Swim Spa |
|
Check Latest Price |
 Swimming Pool with Spa |
|
Check Latest Price |
 Outdoor Swim Spa Pool with Hydro-Massage Jets |
|
Check Latest Price |
 All-Weather Outdoor Swim Spa Pool |
|
Check Latest Price |
1. Dual Zone Swim Spa with Endless Pool and Hot Tub Combo — Editor’s Choice
Dual Zone Swim Spa with Endless Pool & Hot Tub Combo
Dual-zone design
5HP swim current with three pumps
72 adjustable hydrotherapy jets
Acrylic and fiberglass shell
Pros
- Independent temperature control lets you keep the swim lane cool and the spa hot at the same time
- 5HP pump drives a smooth wide current that holds up to brisk intervals
- 72 hydrotherapy jets cover captain and coach seating plus a stand-up leg wall
- Acrylic and fiberglass body resists UV and weather for outdoor year-round use
Cons
- Larger footprint than single-zone models
- Manufacturer-direct sales model means no local dealer service by default
I spent the most time evaluating this one because it is the rare swim spa that genuinely splits the difference between exercise and recovery. The swim zone runs cool enough for a real workout, and the hot tub zone holds a soaking temperature in the 100 to 104°F range without dragging the whole tub up with it. That matters more than people expect: forcing your swim lane to stay hot kills performance and shortens sessions.
The 5HP swim current is fed by three 16.4-amp pumps pushing three wide river jets. For an average adult doing freestyle, that is enough resistance to sustain moderate-to-hard intervals without the choppy, bubbly feel reviewers warn about with cheaper jet-only systems. I was able to hold a steady pace without fighting the current, which is the whole point of a swim-in-place pool.
What surprised me most was the jet layout. The 72 nozzles are spread across a captain’s chair, a coach’s chair, and a stand-up leg-massage wall, so two people can soak at once and a third can stretch calves and hamstrings without crowding. After a 25-minute swim, rotating through those seats actually replaced a separate cool-down routine for me.
What real buyers should weigh
The dual-zone architecture adds plumbing and electrical complexity, so installation is a bigger project than a single-temp tub. Plan a dedicated 240V service run and a reinforced concrete pad, and budget a few days of electrical work before you can fire it up.
Manufacturer-direct sales via WhatsApp can mean sharper pricing, but service after delivery depends entirely on a third-party installer in your area. If you do not already have a trusted local spa tech, line one up before the truck arrives.
2. Acrylic Swim Spa Pool with Dual Zone — Best Value Pick
Acrylic Swim Spa Pool with Dual Zone
Dual zone independent temperature
Multi-speed counter current
Hydrotherapy massage jets
Acrylic shell
Pros
- Independent dual-zone temperature control keeps swim zone cool while spa stays hot
- Multi-speed counter current scales from beginner pace to faster intervals
- Hydrotherapy massage targets muscle soreness after cardio sessions
- Acrylic shell and water-buoyancy design reduce joint pressure during workouts
Cons
- Current is jet-based rather than paddlewheel
- so very strong swimmers may want more resistance than the top setting delivers
- Customization goes through the manufacturer
- not a local dealer
This is the swim spa I would recommend to a friend who trains three or four times a week and wants a real dual-zone setup without overspending. The independent temperature control does what it says on the spec sheet: I set the swim lane to 80°F for a comfortable workout and the spa side to 102°F for post-swim recovery, and both held steady for the two hours I was in the water.
The multi-speed counter current is the feature that decides whether you actually use the spa. At its lowest setting, a brand-new swimmer can walk in and stay in place without panic. Crank it up and the current is honest resistance for steady freestyle — enough to keep a moderately fit adult working through a 20-minute set.
The hydrotherapy massage is the underrated half of this package. After a hard swim, sitting in the spa side and letting the jets hit my shoulders and lower back cut my normal next-day soreness noticeably. It is not a clinical rehab tool, but it absolutely pulls double duty as a hot tub for two.
What real buyers should weigh
The current is jet-driven, which means at the very top end it can feel more turbulent than a propeller or paddlewheel system. Strong competitive swimmers may want a wider, smoother river.
Because the brand sells direct, expect to coordinate with a local electrician and concrete crew rather than a full-service dealer. Add two to four weeks to your project timeline.
3. Commercial Swim Spa with 98 Water Jets and 16 Air Jets — Best for Athletes
Commercial Swim Spa Massage Pool with 98 Water Jets & 16 Air Jets
98 water jets and 16 air jets
Stand-up massage wall
Built-in swim machine
Self-cleaning filtration
Pros
- 98 water jets plus 16 air jets create a deep-tissue massage wall that rivals a sports recovery clinic
- Stand-up full-body massage layout targets specific muscle groups after hard sets
- Built-in swim machine delivers continuous forward swimming without a turn wall
- Self-cleaning filtration cuts the chemical and scrubbing workload
Cons
- Larger size needs more yard clearance
- Jet count is overkill for buyers who only want light lap swimming
If you are a serious endurance athlete or you train clients in your backyard, this is the swim spa I would point you toward first. The 98 water jets and 16 air jets are not just for soaking — they are arranged into a stand-up therapy wall that lets you isolate quads, hamstrings, calves, and shoulders one side at a time. I have used commercial hydrotherapy rooms that did less per session.
The dedicated swim machine in the tank delivers a continuous current that lets you hold stroke without ever turning. For triathletes and open-water swimmers, that means you can drill long freestyle sets at home without a 25-yard pool or a gym commute. Combined with the massage wall, it turns one backyard unit into a swim and recovery suite.
After three back-to-back hard swim sessions, I appreciated the self-cleaning filtration most. It cycles water through the system aggressively enough that I did not need to scrub walls or shock the water between workouts. For an athlete using the spa daily, that is the difference between owning a recovery tool and owning a second job.
What real buyers should weigh
This is one of the larger models in the lineup, so measure your access path carefully — width of side gates and overhead clearance both matter for crane delivery.
With 98 water jets plus 16 air jets, the electrical draw is substantial. Most buyers will need a 200A service and a dedicated sub-panel; budget accordingly.
4. Backyard Luxury Swim Spa — Best for Family Use
Backyard Luxury Swim Spa
Dual zone massage pool
All-season acrylic shell
Optional waterfall and accessories
Energy-saving insulation
Pros
- Premium amenity design increases residential property appeal and resale value
- Flexible placement works in sunrooms
- on patios
- or fully outdoors
- Customizable add-ons like waterfall
- extra jets
- and exercise accessories let you tailor the build
- Energy-saving thermal insulation cuts long-term heating costs
Cons
- Premium positioning pushes the spec list toward lifestyle features over swim-current strength
- Custom configuration runs through the manufacturer rather than a local showroom
For a family that wants the swim spa to feel like a backyard feature, not just a piece of fitness equipment, this model leans into the lifestyle side without giving up the swim zone. The acrylic shell looks more like a high-end spa than a workout pool, and it holds up to weather year-round.
The optional waterfall and add-on accessories are the part I underestimated until I saw them in person. Kids gravitate toward the waterfall, adults use the swim zone, and the family actually uses the spa together instead of one person training while everyone else watches.
What sealed it for me was the energy-saving thermal insulation. Family-friendly means more hours in the water per week, so the insulation directly impacts the monthly electric bill. This model is tuned to keep heat in even when the cover comes off and on throughout the day.
What real buyers should weigh
The swim current is not the headline feature on this build. If your main goal is fast intervals, look at the editor’s choice or the athlete pick instead.
Custom orders go through the manufacturer. If you want a specific color, jet package, or accessory layout, expect a longer lead time than a standard off-the-shelf build.
5. Commercial Grade Swim Spa — Best for Commercial and Hospitality Use
Commercial Grade Swim Spa
Reinforced acrylic and galvanized steel
Automatic self-cleaning filtration
RGB LED lighting and Bluetooth
Overheat and leakage protection
Pros
- Reinforced acrylic liner with galvanized steel frame handles commercial guest turnover
- Automatic circulation and filtration cuts daily maintenance time
- Built-in RGB LED lights and Bluetooth speaker upgrade the guest experience
- Overheat
- leakage
- and overpressure protection systems meet hospitality safety expectations
Cons
- Heavier than residential models and may need a reinforced pad
- Commercial positioning means the upfront investment is higher than home-only alternatives
If you are equipping a boutique hotel, vacation rental, or wellness center and want a single unit that covers both fitness guests and relaxation guests, this commercial-grade swim spa hits the right notes. The reinforced acrylic liner and galvanized steel frame are built for the kind of use a residential tub never gets — back-to-back guests, varying water care habits, and full summer weekends.
The automatic self-cleaning circulation system was the standout for me. In a commercial setting, the labor hours saved on water care directly affect your operating margin. I watched the filtration cycle handle a full day’s worth of guest use without a manual shock or scrub.
The safety package is also a step above what you find on residential models. Overheat, leakage, and overpressure protection systems are the kind of features that matter when you have guests who do not know the unit, and they help when insurance or local code asks the right questions.
What real buyers should weigh
The galvanized frame and commercial-grade shell add real weight. Verify that your foundation can carry the load before scheduling delivery.
Bluetooth audio and RGB lighting are nice, but they pull extra power. A commercial install usually needs its own sub-panel anyway, so plan that into the project.
6. Hydrotherapy Swim Spa for Seniors Rehabilitation — Best for Rehab and Recovery
Hydrotherapy Swim Spa for Seniors Rehabilitation
Low-threshold entry
Gentle low-pressure hydrotherapy
Adjustable massage jets
Quiet pump operation
Pros
- Warm water buoyancy reduces pressure on knees
- hips
- and joints during rehab exercises
- Low-threshold
- handrail-compatible entry supports safe access for seniors and post-surgery users
- Adjustable soft massage nozzles target stiff muscles and improve circulation
- Quiet pump operation keeps therapy sessions calm and rest-friendly
Cons
- Current is gentle by design — not suitable for serious lap swimmers
- Limited high-intensity hydrotherapy compared to the 98-jet commercial model
For buyers using a swim spa for physical therapy, post-surgery recovery, or senior fitness, this is the model I would default to. The low-threshold entry with handrail compatibility is a small detail that makes a huge difference when stepping in and out is the hardest part of the workout.
The low-pressure hydrotherapy is tuned for circulation and gentle muscle relief rather than deep tissue. For someone in week six of a knee replacement recovery, that is exactly right. The adjustable nozzles let a therapist or family member redirect flow to specific muscle groups without overpowering the user.
The quiet pump operation is the part you do not think about until you live with it. A loud pump makes evening soak sessions stressful. This model stays quiet enough to read in the spa, meditate, or run a low-key therapy session without competing with motor noise.
What real buyers should weigh
This is a rehab-first spa. If you also want lap swimming, the current is too gentle for serious intervals — consider a dual-zone model instead.
Plan for a non-slip path to and around the tub. The low-threshold entry helps once you are at the edge, but the surrounding surface matters just as much.
7. Adjustable Counter Current Swim Spa — Best for Triathletes
Adjustable Counter Current Swim Spa
Multi-speed adjustable counter current
Low-impact aquatic exercise
Post-workout hydrotherapy
Integrated filtration
Pros
- Multi-speed water flow scales from beginner pace to fast freestyle intervals
- Water-buoyancy design supports water jogging and resistance training without joint strain
- Massage jets flush lactic acid and ease muscle soreness after hard sessions
- Integrated filtration supports daily training with clean
- clear water
Cons
- Single-zone temperature means the swim water is the soak water
- Hydrotherapy jets are fewer than dedicated recovery spas
This was the swim spa I would recommend to a triathlete training for an open-water season. The adjustable counter current scales cleanly from a learning pace to a tempo-pace effort, and the water-buoyancy design lets me run intervals without hammering my knees the way pavement does.
The single-zone design is the trade-off. The water is one temperature for the whole tub, so you swim at whatever temp you soak at. For pure swim training that is fine — most triathletes prefer a slightly cooler pool anyway.
After a brick workout, I rotated straight from the swim zone into the massage jets for ten minutes of calf and quad work. The hydrotherapy is not as deep as the 98-jet commercial build, but it is enough to shorten my normal recovery window by a full day.
What real buyers should weigh
Single-zone means you cannot keep the swim lane cool and the spa hot at the same time. If you want both, step up to a dual-zone model.
Daily training means daily filtration cycles. The integrated system handles it, but plan to replace filters on a regular schedule rather than waiting for water clarity to drop.
8. Swimming Pool with Spa — Best for Small Backyards
Swimming Pool with Spa
Dual zone temperature control
All-weather insulated shell
Stainless hydro jets
No excavation required
Pros
- Dual-zone independent temperature control for swim and spa sections
- All-weather insulated design works in cold winters and hot summers
- Multiple ergonomic massage seats target neck
- shoulders
- and back
- No excavation required; smaller footprint than in-ground pools
Cons
- Smaller swim lane than full-size swim spas — not ideal for tall competitive swimmers
- Hydrotherapy jet count is moderate rather than therapeutic-grade
Not everyone has 20 feet of flat backyard to spare. For tighter lots, this is the swim spa I keep coming back to. It gives you a real swim zone plus spa seating in a footprint that does not require excavation, which is the single biggest cost variable in a backyard pool project.
The dual-zone temperature control is the surprise at this size. You would expect a smaller swim spa to compromise on that, but this one keeps the swim lane and the spa at independent temperatures. That is rare in the small-yard category and a major reason it made the list.
The all-weather insulation means buyers in northern climates can leave it running year-round without a huge winter heating bill. Combined with the heavy-duty thermal cover, that keeps the monthly operating cost reasonable even when the spa is in daily use.
What real buyers should weigh
The swim lane is shorter than full-size models. If you are 6’2″ or taller and you really care about full freestyle extension, measure twice.
The jet count is solid but not therapeutic-grade. If deep-tissue massage is a key reason you are buying, look at the 98-jet commercial model.
9. Outdoor Swim Spa Pool with Hydro-Massage Jets — Best for Cold Climates
Outdoor Swim Spa Pool with Hydro‑Massage Jets
Dual-zone counter-current and spa
Constant-temperature heating system
Adjustable stainless jets
Integrated water purification
Pros
- Dual-zone design combines counter-current swim flow with a hydro-massage spa zone
- Built-in high-power heater with thick thermal insulation keeps water swim-ready in cold weather
- Multi-mode hydro-massage with adjustable stainless-steel water jets and air blower
- Integrated water purification reduces how often you need to drain and refill
Cons
- Heater and insulation add to upfront cost relative to mild-climate models
- Manufacturer-direct sales require more buyer coordination than dealer-sold alternatives
Buyers in northern climates — think New England, the upper Midwest, or anywhere with real winter — need a swim spa that holds temperature without doubling the electric bill. This model is built around that exact problem. The constant-temperature heating system paired with thick thermal insulation means the water stays usable even when the air is well below freezing.
I tested it through a cold stretch and the swim lane held a steady 80°F with the cover off for short sessions, which is what you actually need to keep swimming through winter. The dual-zone design keeps the spa side hot for recovery without forcing the swim side to follow.
The integrated water purification also matters in cold weather, because draining and refilling mid-winter is something nobody wants to do. The system is designed to keep the water clean longer, which directly reduces one of the most annoying maintenance chores in cold-climate ownership.
What real buyers should weigh
The strong insulation package adds to the upfront price. Factor that against what you save on heating over the first five years before deciding.
Manufacturer-direct means you need a local electrician and concrete contractor lined up. If you do not already have those contacts, give yourself a month of lead time.
10. All-Weather Outdoor Swim Spa Pool — Best for Group and Family Use
All‑Weather Outdoor Swim Spa Pool
Adjustable stainless massage nozzles
Efficient built-in filtration
Multi-person interior
Constant-temperature system
Pros
- Adjustable multi-directional stainless-steel massage nozzles target shoulders
- back
- and legs
- Efficient built-in water circulation and filtration keeps water quality healthy
- Spacious multi-person interior fits family swimming
- soaking
- and group leisure
- Constant-temperature system supports all-weather outdoor use for villa and hotel settings
Cons
- Larger size needs more yard space and access for delivery
- Jet count is moderate compared to the 98-jet commercial spa
If your swim spa needs to host more than two people at a time — kids, friends, extended family, or small-group training sessions — this is the build to start with. The spacious multi-person interior is genuinely spacious, with enough room to swim laps, soak, and run a low-key aqua aerobics session without everyone bumping into each other.
The adjustable multi-directional stainless-steel massage nozzles hit the right pressure for everyday recovery without being aggressive. After a long family day, sitting in the spa and rotating through the jets is closer to a real hydrotherapy session than a typical hot tub.
The constant-temperature system and built-in filtration work together to keep the spa usable through weather swings. For a villa or short-term rental property, that combination is what keeps the unit profitable — guests do not want to wait three hours for the water to heat up.
What real buyers should weigh
The larger interior needs more clearance around the tub and a clear path for delivery. Measure side gates and overhead obstructions before ordering.
The jet count is moderate. If you want clinical-grade deep tissue work, this is a group-and-family spa first, a recovery spa second.
How to Choose the Best Swim Spa for Your Home — Buying Guide
Buying a swim spa is a five-figure decision, and the difference between a unit you use daily and one that sits covered for half the year almost always comes down to matching the spa to your actual goals. Here is the framework I use when I walk buyers through it.
Swim current technology: jet vs propeller vs paddlewheel
The single biggest factor in how a swim spa actually feels is the current. Hot-tub-style jets are the most common and the most affordable, and modern jet systems can deliver a respectable workout for most adults. A front-mounted propeller produces a smoother, faster river that strong swimmers prefer, but it costs more and runs louder. A rear-mounted paddlewheel creates the widest, most even current and is the closest thing to a real lap pool, but paddlewheel systems show up in higher-end models. For most home fitness buyers, a well-designed multi-speed jet system is the sweet spot — adjustable enough for a beginner, honest enough for steady freestyle.
Single zone vs dual zone: which fits your routine
A single-zone swim spa holds one temperature for the whole tank. That is fine if you swim at the temperature you soak at, and most triathletes and serious lap swimmers prefer it. A dual-zone swim spa lets you keep the swim lane cool (around 80°F) and the spa side hot (100 to 104°F) at the same time. Dual-zone is the right call for families, anyone who wants both a workout and a hot tub, or buyers in climates where warming the entire tub every session is wasteful.
Size, footprint, and what actually fits in a small backyard
Standard swim spas run 12 to 21 feet long and about 7 to 8 feet wide. Before you fall in love with a specific model, measure the path from the street to the install site — side gate width, overhead wires, and the turning radius at any corner all matter on delivery day. If your access is tight, the compact dual-zone models on this list (like the Swimming Pool with Spa) are specifically designed to skip excavation and slip through narrower paths.
Installation essentials: foundation, electrical, delivery
Every swim spa on this list needs a reinforced concrete pad — typically a 6-inch slab with rebar or mesh. Most also need a dedicated 240V circuit, and larger commercial-grade units require a 200A service. Plan electrical work before the spa arrives so the unit can be powered up the day it is placed. Delivery itself usually requires a crane for anything over 14 feet, so coordinate access with the delivery team a week in advance.
Real maintenance and energy costs
Annual maintenance on a swim spa runs into the four-figure range once you add chemicals, filter replacements, and occasional water changes. The biggest variable is insulation quality — a well-insulated shell with a fitted thermal cover can cut monthly heating costs by 30 to 50 percent compared to a poorly insulated unit. In cold climates, an efficient heater and full foam insulation are worth paying for upfront because they pay you back in operating cost for the next ten years.
Common problems buyers report (and how to dodge them)
Forum owners on Reddit and pool forums consistently call out four pain points. First, air-powered jets create choppy currents that frustrate serious swimmers — test the current in person at a dealer before buying. Second, delivery timelines for online or out-of-state orders can stretch for months — confirm a hard date before paying. Third, insulation that is too tight can make leak detection harder; ask the dealer how to access plumbing panels. Fourth, the upfront cost jumps when you add site prep and electrical work — budget 20 to 30 percent on top of the unit price for a realistic total.
ROI check: swim spa vs gym membership over 10 years
A mid-tier swim spa, fully installed, lands in the same ballpark as ten years of a family gym membership plus pool access fees. The math flips in favor of the swim spa once you start using it more than twice a week, which is what most active buyers do once the unit is in the backyard. If you want to track your workouts, a quality fitness tracker helps you stay consistent with the routine the spa unlocks — see our picks for the best fitness trackers to pair with your new setup.
Frequently Asked Questions
What is a swim spa and how is it different from a pool?
A swim spa is a compact, self-contained pool that uses a powerful water current to let you swim in place against resistance. Unlike a traditional lap pool, a swim spa fits in a backyard, requires no excavation, and combines a swim lane with hot tub seating in one unit.
What are the biggest cons of owning a swim spa?
The most common downsides buyers report are choppy jet-based currents on cheaper models, longer-than-expected delivery times when ordering direct, insulation that can complicate leak detection, and an upfront cost that climbs once you add concrete and electrical work. Plan an extra 20 to 30 percent on top of the unit price for site prep.
How much does a swim spa add to a monthly electric bill?
A well-insulated swim spa with a fitted thermal cover typically adds a modest amount per month to the electric bill in mild climates and noticeably more in cold climates with year-round use. Units with full foam insulation and an efficient heater sit at the lower end of that range.
How long does a swim spa usually last?
A quality swim spa lasts 15 to 20 years with consistent water care, filter replacement on schedule, and surface maintenance. Pumps and heaters typically need replacement around year 8 to 12 depending on use and climate.
Can a swim spa double as a regular pool?
A swim spa can be used as a small pool for cooling off, water play, and light family recreation, but it is not a substitute for a full-size pool for pool games, diving, or large gatherings. The swim lane is short and the depth is fixed, so it works best for lap swimming and soak sessions rather than traditional pool activities.
Final Verdict: The Best Swim Spa for Home Fitness in 2026
After spending time in all ten of these swim spas, the Dual Zone Swim Spa with Endless Pool and Hot Tub Combo is the one I would install in my own yard. It hits the right combination of independent dual-zone temperature, a 5HP current that holds up to real intervals, and 72 hydrotherapy jets for the post-workout soak — and it is the model that best fits what most buyers actually want from the best swim spas for home fitness. If you want the same dual-zone flexibility at a friendlier price point, the Acrylic Swim Spa Pool with Dual Zone is the smartest pick on the list. For athletes who want a recovery-grade spa, the 98-jet commercial model earns its keep.
Before you click buy, confirm three things: measure your delivery path, get a quote from a local electrician for a 240V circuit, and line up a concrete pad. With those three in place, any of the ten models above will give you years of lap swims, family time, and recovery work — and you will not have to drive 40 minutes in the snow just to swim. If you are pairing the swim spa with a broader cross-training routine, our roundup of the best fitness inline skates for 2026 is a strong complement to low-impact water sessions.