Best triathlon suits 2025: race-ready tri suits for every distance

Reviewed and rated six tri-suits, tested and put through their paces in all three disciplines

Athletes transition to the bike leg, running alongside their bikes during IRONMAN 70.3 in Ohio on July 21, 2024
(Image credit: Getty Images/Scott Taetsch)

Adding one of the best triathlon suits to your arsenal of kit can be a great way to improve your performance, speed up transitions, and generally feel more comfortable across all three disciplines.

Very much akin to the best skinsuits for road cycling, aerodynamics is at the core of all the best tri suits, with the only real difference between them being the volume of chamois. Tri suits will tend to feature a much thinner pad to provide better flexibility during the run and swim portions of a triathlon, versus the best cycling shorts, which focus heavily on comfort for long periods in the saddle. Triathletes are also not constrained by the UCI rulebook, meaning many outlawed features make an appearance on these suits.

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Tom Epton
Freelance writer

Tom Epton is a freelance writer and data scientist. Originally training as a scientist after completing his studies in physics he realised that cycling was what he wanted to spend his life thinking about. Now he works with manufacturers, athletes and teams using cutting edge data science methods to find performance gains. Tom writes primarily about sport-science and tech! 

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