Castelli Size Chart This suit is for you if you race 70.3 and Ironman distance and like the convenience of a 2 piece suit with the comfort of a 1 piece. The Sanremo front makes it easy to ventilate, easy to respond when nature calls, and maintains the aero performance of a 2 piece suit. The full pockets on the back lay flat for the swim while providing plenty of space for carrying nutrition on the bike or run. Features: - SpeedFreak ventilated race fabric on front of upper portion - Velocity mesh back gives wind-tunnel-proven speed on the bike - YKK(R) Camlock(R) zipper - FreeAero 2 hydro- and aero-optimized pockets - Soft-finish armholes to reduce chafing - Castelli-innovated Sanremo front construction allows easy nature breaks and ventilation in one-piece race suit - Instadry Speed fabric on short is fast in the swim with minimal water absorption - KISS Tri seat pad is comfortable on the bike and virtually disappears on the run - 2 small pockets on hip for nutrition during run - GIRO Air leg gripper elastic - Weight: 182g