2XU Fusion Trisuit: Utilising light weight 2XU DARK SHIELD fabric technology, this outstanding black Trisuit will stay as cool as any white suit in warm conditions. DARK SHIELD works to reduce heat build-up by reflecting infrared heat rays from the wearer while 40 gauge fabric assures minimum weight & high breathability. Quick drying & body cooling, this impressive Fusion Trisuit is engineered for high performance racing in the heat. Fusion welded seams Flatlock stitching Seamless gripper Dark shield Elite tri chamois