2XU Men's Core Trisuit1. Sleeveless trisuit 2. Ergonomically engineered paneling with flatlock seam finishes minimises chafe 3. Lightweight, flexible PWX provides powerful lower body muscle support 4. SBR SKIN 235gsm stretch ASKIN wicks sweat away from upper body so you stay dry and cool 5. 2 side and 3 back mesh nutrition pockets provide multiple storage locations as well as easy access whilst on the move 6. 3 4 length semi auto lock zip with garage to prevent chafing 7.