2XU Men Aero Hex Sleeved Trisuit Midnight/ Cool MatchaHighlights Ergonomically engineered panelling with smooth, flat overlock seam finishes reduce loose or wrinkled fabrics Lightweight, flexible PWX provides powerful lower body muscle support SBR HEX across arms, shoulders and sides help 'roughen' up air flow to reduce drag and improve breathability SBR SKIN 235gsm stretch ASKIN wicks sweat away from upper body so you stay dry and cool Stretch mesh underarm gusset increases swim flexibility Large