2XU Mens G:2 Active Tri Singlet 92% POLYESTER, 8% ELASTANE Imported SBR skin x technology boosts performance, support and recovery with 70D Elastane fabric High fil mesh paneling on the front and back provides breathability and full range of motion Flatlock stitching creates a streamlined look, enhancing comfort while reducing chafe Two rear pockets are ideal for storing fuel during your event 50+ UV fabric to keep you protected from the sun's rays