Swimsuits · Roundup
Best Swimsuits for Lap Swimming (2026)
A lap suit is a different garment from a beach suit, and it costs the same.
The short answer
The Speedo Women's Endurance+ Super Pro is the lap-swimming pick: PBT fabric that is fully chlorine-resistant, a high-coverage pro back that does not shift mid-stroke, and a fully lined cut. For men swimming laps, a short-inseam Marina Volley trunk with a mesh liner is the practical choice.
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| # | Product | Best for | Fabric | Price |
|---|---|---|---|---|
| 1 |  Top pick Speedo Women's Endurance+ Super Pro Endurance+ fabric is the genuine article — it outlasts standard swim fabric several times over in chlorine. | Real chlorine resistance | Endurance+ (PBT), 100% chlorine-resistant | |
| 2 |  Also good Arena Women's Team Solid MaxLife Swim Pro Back Arena's MaxLife fabric contains no elastane at all, which is the reason a daily swimmer's suit stops going slack by August. | Daily chlorine, no elastane | MaxLife polyester, no elastane | |
| 3 |  Also good TYR Women's Durafast Elite Maxfit TYR's chlorine-proof Durafast Elite in a longer-cut back, for swimmers a standard suit cuts into. | Long torsos, training | Durafast Elite, chlorine-proof | |
| 4 |  Also good Lands' End Chlorine Resistant Tugless Tank The one major brand that treats long torso, D-cup, DD-cup and plus as cataloged fits rather than as exceptions. | Long torso and cup sizing | 77% nylon / 23% LYCRA Xtra Life | |
| 5 |  Budget pick Speedo Men's Marina Volley Trunk A short quick-dry volley trunk built to swim in, with a liner and a pocket that drains. | Swimming, not lounging | Approx. 8 in inseam |
Why a fashion suit fails at lap swimming
A beach swimsuit is built around elastane — sold as Lycra or spandex — because elastane is what makes a suit hug a body and look good doing it. Elastane is also chemically attacked by chlorine. Three sessions a week in a treated pool will take a conventional suit from new to baggy and transparent in a couple of months.
Training suits solve that by changing the fiber. Polyester and PBT are intrinsically chlorine-resistant rather than coated, so the suit does not rely on something wearing off slowly. A suit labeled 100 percent polyester, PBT, Endurance+, MaxLife or Durafast will do five to ten times the pool hours of a comparable elastane suit.
The trade is a stiffer hand and a smaller range of prints. That is the entire downside, and the economics are not close: one training suit outlasts a stack of fashion suits bought at the same price. The fabric detail is in chlorine-resistant swimsuits.
Speedo Women's Endurance+ Super Pro
Endurance+ fabric is the genuine article — it outlasts standard swim fabric several times over in chlorine.
Specifications
- Fabric
- Endurance+ (PBT), 100% chlorine-resistant
- Back
- Super Pro, high coverage
- Sizes
- Women's 28-40
- Lining
- Fully lined
What works
- PBT fabric does not degrade in chlorine — the fabric, not a coating, is what makes this last
- Super Pro back holds the shoulders without cutting in over a long swim
- Holds compression across a full season rather than going slack
- Fully lined, so it stays opaque wet
What doesn’t
- PBT has less stretch than standard swim fabric and feels firmer
- Costs roughly double a fashion one-piece
Who it’s for
A woman swimming laps weekly, or anyone tired of replacing a suit every summer.
Bottom line
Cheaper per swim than any fashion suit. If you swim in chlorine regularly, this is the only sensible fabric.
Arena Women's Team Solid MaxLife Swim Pro Back
Arena's MaxLife fabric contains no elastane at all, which is the reason a daily swimmer's suit stops going slack by August.
Specifications
- Fabric
- MaxLife polyester, no elastane
- Back
- Swim Pro, open back
- UPF
- 50+ (Arena's rating)
- Sizes
- US numeric team sizing
What works
- No elastane in the fabric means there is nothing in it for chlorine to attack, which is a different claim from chlorine-resistant
- Arena states a MaxLife suit holds close to its original properties after 240 hours in the water
- The open Swim Pro back leaves the shoulders free, which is what freestyle actually needs
- Team colors are restocked year on year, so the same suit in the next size up is usually still buyable
What doesn’t
- Cut for training — tight, compressive and high on the leg, which is not what everyone wants at a lake
- Arena's sizing is numeric and runs small against US dress sizes; the chart is not optional
- Elastane-free fabric feels firm out of the packet and takes several swims to relax
Who it’s for
A woman or teen swimming laps several times a week in chlorine who wants the suit to still fit properly in a year.
Bottom line
The brand to buy when the pool is a routine rather than a vacation. Measure against Arena's own chart before ordering.
TYR Women's Durafast Elite Maxfit
TYR's chlorine-proof Durafast Elite in a longer-cut back, for swimmers a standard suit cuts into.
Specifications
- Fabric
- Durafast Elite, chlorine-proof
- Back
- Maxfit, open
- Sizes
- Women's 22-40
- Lining
- Front lined
What works
- Durafast Elite resists chlorine, sunscreen and salt, which is more than most fabrics claim
- Maxfit back is cut longer, so it does not dig at the shoulders on a long torso
- Open back stays cool on outdoor swims
- Genuine size range including smaller and larger sizes
What doesn’t
- Open back gives less sun coverage on the shoulders
- Firm fabric takes a few swims to soften
Who it’s for
Regular swimmers, especially anyone who finds standard one-pieces too short in the body.
Bottom line
The alternative to Endurance+, and better if a standard suit cuts into your shoulders. Both fabrics are the real thing.
Lands' End Chlorine Resistant Tugless Tank
The one major brand that treats long torso, D-cup, DD-cup and plus as cataloged fits rather than as exceptions.
Specifications
- Fabric
- 77% nylon / 23% LYCRA Xtra Life
- UPF
- 50
- Support
- Soft cup bra, no underwire
- Fits
- Regular, long torso, D/DD cup, plus
What works
- Long torso and cup-sized versions are separate fits, not a larger copy of the same pattern — the actual fix for a suit that digs at the shoulders
- LYCRA Xtra Life is the chlorine-resistant grade of spandex; Lands' End states it lasts up to ten times longer than standard spandex
- The soft cup shelf bra supports without an underwire that eventually rusts and digs
- UPF 50 across the body, which matters if you spend the afternoon standing in open water
What doesn’t
- Nylon and spandex, so chlorine-resistant rather than chlorine-proof — a daily lap swimmer will still wear it out faster than a polyester-PBT suit
- List price is high and the brand discounts so often that buying at full price feels like bad timing
- Sporty and modest by design; nobody buys this suit for the styling
Who it’s for
A parent in and out of the water all day who has never found a suit that fits a long torso or a fuller bust.
Bottom line
The fit brand. Buy it on one of its frequent sales rather than at list, and buy the specific fit rather than sizing up.
Speedo Men's Marina Volley Trunk
A short quick-dry volley trunk built to swim in, with a liner and a pocket that drains.
Specifications
- Length
- Approx. 8 in inseam
- Waist
- Elastic with drawcord
- Liner
- Mesh
- Back, drainable
What works
- Short enough to actually swim in — long board shorts fill with water and drag
- Quick-dry fabric means you are not sitting in a wet trunk for an hour after
- Drainable pocket does not hold a liter of lake water
- Priced to own two
What doesn’t
- Above-knee length is not to everyone's taste
- Liner will irritate some wearers
Who it’s for
Anyone who swims rather than wades — laps, lake crossings, keeping up with children.
Bottom line
Buy by inseam, not by brand. Anything past the knee is a beach garment, not swimwear.
Pick a back style, then a size
For women, the back of the suit is the decision that changes how a swim feels, and it is the one most people buy by accident.
| Back | Coverage | Shoulder freedom | Best for |
|---|---|---|---|
| Super pro / pro back | High | Full | Daily training, no adjusting mid-set |
| Open / swim pro back | Moderate | Full | Warm pools; a cooler feel |
| Racerback | High | Good | General fitness swimming |
| Tank with straps | Highest | Moderate | Comfort, and suits with cup support |
If you have ever spent a swim pulling a strap back onto your shoulder, buy a pro back. If you overheat in an indoor pool, the open back is noticeably cooler. If you need real bust support, a soft-cup tank is the category — underwire has no place in a lap suit.
Then size by measurement, not by your usual dress size. Training suits run to numeric sizes based on chest, and they are cut to be snug — a lap suit that feels slightly tight in the changing room is correct, because the fabric relaxes a little in the water. Do not size up for comfort; a loose training suit fills with water and drags. The method is in swimsuit sizing guide.
Torso length is the measurement nobody takes
Chest, waist and hip get measured. Torso length almost never does, and it is the measurement that explains the two most common complaints about one-piece suits: it rides up between the legs, or it pulls down at the shoulders.
Measure from one shoulder, down the front, between the legs, and back up to the same shoulder. Compare against the brand's long-torso option if they publish one. Lands' End and TYR both do, and buying a long-torso size is a completely different fix from buying a bigger size — bigger is wider, long-torso is longer.
Men swimming laps
Men have three options and the right one depends on how much swimming is actually happening.
- A short-inseam volley trunk with a mesh liner — around an 8-inch inseam — is the practical pick for fitness swimming. It swims properly, it is socially unremarkable at a public pool, and it dries fast.
- Board shorts are the wrong garment for laps. A long, loose leg is a parachute, and a lined board short is worse because the liner holds water.
- Jammers and briefs are what competitive swimmers wear and they are measurably faster, which is irrelevant to anyone not racing. If you are doing timed sets, you already know.
Whatever the cut, look for a drawcord that actually holds and a drainable back pocket rather than a zip one. The broader men's picks are in best men's swim trunks.
What to look for
- A fiber name on the label — polyester, PBT, Endurance+, MaxLife, Durafast. "Chlorine resistant" with no fiber named usually means a coating.
- Full lining on a women's one-piece, which is what stops a light-colored suit going sheer when wet.
- Flat, covered seams, because a raised seam under an arm is a rub at 1,500 yards.
- A back you do not have to think about once you are swimming.
- Two suits, alternated. The single biggest extender of swimsuit life is never putting on a suit that is still damp from yesterday.
Lap swimming in a lake
A training suit works in open water too, and there is no chlorine to resist, so the fabric argument falls away and comfort takes over. What changes is visibility and temperature: a bright cap is what makes you visible to a boat, and a rash guard over the suit is what makes a cool morning swim pleasant rather than brief.
For glare and sighting, wide-lens goggles rather than a racing frame — the reasoning is in best swim goggles for open water. And if the water is genuinely cold rather than merely bracing, that is a wetsuit question, not a swimsuit one: rash guard vs wetsuit.
Making it last
Rinse in cold water within minutes of getting out, before the chlorine dries into the fabric. Hand wash cool, press the water out rather than wringing, and dry flat in the shade. Never the dryer, never a hot car dashboard, and never a hot tub — heat and concentrated chlorine together are the fastest way to destroy any suit, training fabric included.
That routine roughly doubles the life of a suit and costs nothing, which on a training suit means years rather than months. The full version is in how to wash a swimsuit.
Questions
Frequently asked questions
What kind of swimsuit is best for lap swimming?
Are chlorine-resistant swimsuits worth it for lap swimming?
Should a lap swimsuit be tight?
Can men swim laps in board shorts?
How long does a lap swimsuit last?
Sources
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