Best triathlon wetsuits for open water swimming

My first open water swim was in a borrowed wetsuit that was two sizes too big. Water flushed through the neck every time I breathed, and by the halfway point I was dragging what felt like an extra ten pounds of lake water around my midsection. I finished, but I was slower than my pool pace, which is the opposite of what’s supposed to happen in a wetsuit.

A properly fitted tri wetsuit should make you faster, not slower. The buoyancy lifts your hips and legs, which fixes the sinking lower body that plagues most swimmers in open water. The neoprene reduces drag. And if the fit is right, you barely notice it after the first few minutes.

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Triathlon wetsuits vs surfing wetsuits

Don’t use a surfing wetsuit for a triathlon. They’re built for different things. Surf suits prioritize durability and warmth. They use thicker neoprene throughout and restrict shoulder movement because surfers don’t need a full freestyle stroke.

Tri wetsuits use thinner, more flexible neoprene in the shoulders and arms (often 1-2mm) so you can rotate freely. The torso and legs are thicker (3-5mm) for buoyancy. The exterior coating is smoother to reduce drag through the water. And they’re designed to come off fast in transition, with features like quick-release ankles and slippery interior linings.

Using a surf suit in a race is technically legal in most events, but you’ll burn way more energy fighting the shoulder restriction, and your T1 time will suffer trying to peel it off.

What to look for

Fit

Fit matters more than brand, more than neoprene grade, more than anything else on this list. A wetsuit that doesn’t fit right is worse than no wetsuit at all. It should feel tight everywhere without restricting your breathing or shoulder rotation. Tight is good. Constricting is bad. The neoprene stretches slightly when wet, so a new suit should feel snug on land.

There should be no loose material in the lower back or behind the knees. That’s where water pools and creates drag. The neck seal should sit flat against your skin without choking you. Most fit problems come from getting the wrong size, so measure your height, weight, and chest carefully and follow the brand’s chart. If you’re between sizes, size down.

Neoprene thickness and panel layout

Entry-level suits use the same thickness neoprene everywhere. Better suits use variable thickness panels: thin and flexible in the shoulders (1-1.5mm), thicker in the core and legs (3-5mm) for buoyancy, and medium in the back (2-3mm).

The leg buoyancy matters a lot. Most triathletes come from running or cycling and don’t have a swimmer’s kick. Their legs drag low in the water. A suit with 4-5mm neoprene in the legs lifts them into a better body position, which alone can drop your swim split.

Coating and surface texture

Higher-end suits have a smoother or textured exterior coating called SCS (super composite skin) or similar. It reduces friction as you move through the water. Cheaper suits use raw neoprene on the outside, which is slightly rougher and slower. The difference is real but small, maybe a few seconds per hundred meters.

Flexibility

The shoulder panels on a good tri wetsuit should let you reach overhead and rotate without resistance. Some brands use a stretchy material called Yamamoto neoprene (the grade matters: Yamamoto 39 is entry-level, 40 is mid, 44 is premium). Others use their own proprietary rubber. The best way to test flexibility is to try the suit on and do arm circles. If it pulls across your upper back or resists at the top of your stroke, it’s going to exhaust you over 1,500 meters.

Zipper

Most tri wetsuits zip up the back. A few newer models zip in the front, which makes them easier to get in and out of by yourself. Back-zip suits sometimes need a friend or a cord pull. Front-zip suits tend to have a slightly different fit around the neck and chest. I prefer back-zip because that’s what I’m used to, but if you’re doing your own transition without anyone to help, front-zip is easier to deal with.

Best triathlon wetsuits right now

Orca Openwater Core

Orca’s cheapest suit that’s actually worth racing in. It uses 2mm neoprene in the arms and shoulders with 4mm in the torso and legs. The buoyancy is good for a suit at this price, and the arm flexibility is decent enough for sprint and Olympic distance races.

The exterior is uncoated neoprene, so it’s not the fastest through the water. The interior lining is fine but not as slick as pricier suits for fast removal. It’s the suit I’d recommend for your first race or first season of open water swimming. You’ll know after a season whether you want to upgrade, and you won’t have sunk $500 finding out.

Roka Maverick MX

This is where tri wetsuits start to feel noticeably different from budget options. The Maverick MX uses Yamamoto neoprene with an SCS coating on the exterior. Roka claims it’s 20% more buoyant than their entry-level Comp, and the arm panels are thin enough that shoulder fatigue isn’t an issue even on longer swims.

Roka’s fit is slightly more generous in the torso than Orca, which works better for cyclists and runners who carry more upper body muscle. The quick-release ankles make T1 faster. I’ve raced in this suit at Olympic and half-iron distances and never felt like it was holding me back.

HUUB Aegis X

HUUB does something interesting with the Aegis line. They offer different buoyancy profiles (3:3, 3:5, and 5:3 ratios of arm-to-leg neoprene thickness) so you can match the suit to your swimming ability. If your legs sink, the 3:5 gives you more lift. If you already have a good body position, the 3:3 lets you move more freely.

The fit tends to run slim, especially in the arms. The neoprene quality is on par with Roka at a slightly lower price. The one knock is durability; HUUB suits seem to develop small nicks in the coating faster than Orca or Roka. Handle them with care and keep your fingernails trimmed when putting them on.

blueseventy Helix

The race-day suit for people who want every advantage in the water. The Helix uses premium Yamamoto 44 neoprene, which is noticeably more flexible and lighter than lower-grade rubber. The SCS coating is slick enough that you can feel the difference in the water. The seamless shoulder design is what sets this apart from everything below it in price.

The panel layout is designed around a natural swimming position rather than a standing position, which means it feels slightly odd when you’re walking around on land but locks in once you’re horizontal in the water.

At $550, this is a lot of money for a wetsuit. But if you’re racing Ironman or half-iron distances and your swim is a weakness, the speed and flexibility here is the best I’ve worn. The suit is also fragile. Yamamoto 44 tears easier than thicker rubber, so be careful getting it on and off.

Orca Athlex Float

I originally had the Xterra Vortex in this slot, but after more research I’d steer people toward the Orca Athlex Float instead. It’s in the same price range and the neoprene quality and construction are noticeably better. The Athlex Float is specifically designed for triathletes who need extra buoyancy in the legs, with a 3:5 panel ratio that lifts your lower body into a better position.

The flexibility is good for the price, and it comes with Orca’s slippery interior lining for faster removal in T1. If you’re a runner or cyclist doing your first few tris and you know your swim is the weak leg, this suit helps where it counts.

Transition tips

Practice taking your wetsuit off before race day. Seriously. The first time you try to rip a wet neoprene suit off your ankles while your heart rate is at 170, you’ll understand why people rehearse this.

Apply a thin layer of body glide or similar lubricant around your neck, wrists, and ankles before the swim. It prevents chafing and makes the suit slide off faster. Some people put plastic bags over their feet before stepping into the suit for the same reason.

Wear your tri suit or race kit under the wetsuit. Everything should be ready for the bike when the wetsuit comes off. Don’t be the person in T1 trying to put on a jersey with wet hands.

If your race allows earbuds during the bike and run legs, have them ready in your transition bag, not on your body during the swim. Salt water kills electronics.

A good GPS watch or fitness tracker with open water swim mode helps you track your actual swim distance and pace, which is hard to gauge without pool walls. Most triathlon watches do this well.

Wetsuit care

Rinse your suit in fresh water after every swim, especially salt water. Salt crystals degrade neoprene over time. Hang it to dry inside out, away from direct sunlight. UV breaks down the rubber.

Don’t fold your wetsuit. Hang it on a wide hanger or drape it over a shower rod. Creases in neoprene weaken the material and create permanent dents. Store it somewhere cool and dry during the off-season.

If you get a small tear, wetsuit cement fixes it. The stuff costs about $5 and works well on minor damage. For bigger rips, most manufacturers offer repair services.