Niche verticals Apr 18, 2027 5 min read
Size Guide for Triathlon Suits
Tri suits handle swim + bike + run in one. Compression fit critical. Sized by all body measurements + height for proper torso length.
The Chart
| Suit Type | Best For | Sizing |
|---|---|---|
| One-piece tri | Speed, aero | XS-3XL by full body |
| Two-piece tri | Comfort, longer races | Top + bottom independent |
| Sleeveless tri | Hot weather | Same body measurements |
| Sleeved tri | Long course, sun protection | Same + sleeve length |
FAQs
Tight feel critical?
Yes. Loose tri suit drags in water. Snug compression aids muscle support during run. Should feel firm but not constricting.
Brands worth trying?
Castelli (Italian aero), Zoot (US), Roka (US, swim-focus), TYR (swim + tri). Each runs slightly different. Try-on before buying for race-day fit.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.