Wetsuit Selector
Tell us your water temperature, swim ability and budget — we'll suggest the wetsuit type, thickness and whether one's even allowed.
Wetsuit legality: optional
Wetsuits are usually optional (age-group wetsuit-legal) in this range. Most beginners still benefit from one; strong swimmers may skip it in the warmer part of the range.
Rules vary by federation, distance and age-group vs elite status — always confirm your race's wetsuit rules.
Recommended: Full-sleeve, standard
A standard full-sleeve triathlon wetsuit is the default here — warm, legal and buoyant. Choose a suit with buoyancy in the core and legs to help your position.
Buoyancy: You benefit most from buoyancy that lifts the hips and legs, so a wetsuit with more core/leg flotation helps your position and saves energy.
At your budget
Mid-range suits add shoulder flexibility and better neoprene that lasts several seasons.
Browse sensible (lasts seasons) wetsuitsAffiliate disclosure: links may earn us a commission at no extra cost to you. These are research-based suggestions, not first-hand tests.
Fit & returns — read before buying
- Fit is everything. A wetsuit should be snug with no loose folds or gaps at the neck, lower back or armpits, but not so tight you can't breathe deeply or rotate your shoulders.
- Buy where you can return it. Fit varies hugely between brands and sizes — use a retailer with a try-and-return policy, and try it on (dry) before your first swim.
- Racing once? Renting is often cheaper for a single cold-water race — see the rental vs buying guide below.
- Body shape: use the brand's size chart by height and weight, and check their guidance for longer/shorter torsos; a suit that's too long causes neck rub and water pooling.
Frequently Asked Questions
What water temperature do you need a wetsuit for?
For age-group triathletes, wetsuits are typically mandatory below 16°C (61°F) for warmth and safety, optional in the wetsuit-legal range up to about 24.5°C (76°F), and forbidden above roughly 24.5°C. Exact thresholds vary by federation and race distance, so always check your race's rules.
What thickness triathlon wetsuit should I buy?
Colder water and weaker swimmers favour a thicker full-sleeve suit (around 5/3 mm) for warmth and buoyancy; milder legal water suits a standard or thin full-sleeve, and strong swimmers or those who overheat may prefer sleeveless. Above the wetsuit-legal limit you can only wear a non-buoyant swimskin.
How should a triathlon wetsuit fit?
Snug with no loose folds or gaps at the neck, lower back or armpits, but loose enough to breathe deeply and rotate your shoulders freely. Fit varies a lot between brands, so use the size chart by height and weight and buy from a retailer with a try-and-return policy.
Should I rent or buy a triathlon wetsuit?
Rent if you'll race only once or twice and the water is cold enough to require a suit. Buy once you race more often, because an owned suit that fits well is more comfortable and cheaper over time. See the rental vs buying guide for a cost breakdown.
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