Wasting valuable seconds during transition isn't an option, so pull on a SKINS TRI400 men's sleeveless top and push on into the next stage. Dynamic gradient compression helps accelerate your blood flow to get more oxygen to your active muscles. Increased circulation helps reduce lactic acid build-up - so you can compete hard from start to finish to smash your previous PB. Based on 400 key fitting points, the SKINS TRI400 range is cut for swimming, cycling and running comfort. Strategically placed panels of TRI400 fabric minimise drag and aid performance in the water.