Castelli Men's Free ITU Tri Suit SpeedFreak ventilated race fabric on front of upper portion - Velocity mesh back gives wind-tunnel-proven speed on the bike Rear 30cm zipper - FreeAero 2 hydro- and aero-optimized pockets Soft-finish armholes to reduce chafing - Instadry Speed fabric on short is fst in the swim with minimal water absorption KISS Tri seat pad is comfortable on the bike and virtually disappears on the run - Multi density foam specifically designed for the triathlete, optimized for aerobar position on the bike with a seamless skin care layer, super soft, brushed microfiber top that maximizes comfort and fit - Bacteriostatic treatment to avoid saddle sores and infection Giro Air leg gripper elastic