Castelli IOS FSS Trisuit short sleeve Blue Green
The comfort and speed of a one-piece suit, most of the convenience of a two-piece suit, and most of the speed of a T1:Stealth on the bike leg. No wonder it’s the pros’ choice for most races.We’ve sweated the little details—from fabrics to construction to fit and cooling—even the details you won’t notice until you’re on that last lap in the run.
- SpeedFreak ventilated race fabric on front of upper portion
- Velocity Mesh back gives wind-tunnel-proven speed on the bike
- YKK® Camlock® zipper
- FreeAero 2 hydro- and aero-optimized pockets
- Elbow-length sleeves for aerodynamics on bike
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