Skins wrap and support key muscle groups, which reduces vibration and helps maintain muscle alignment. The fabrics also draw moisture away from the skin, keeping you dry. SKINS also helps to regulate body temperature in both warm and cool conditions. Muscles warm up through enhanced circulation and excellent sweat management system helps to circulate air, keeping you cool. Skins help to improve the supply of oxygen to activate muscles, enhancing natural performance and increasing the turnaround of metabolic waste and reducing the build up of lactic acid. The Skins A400 Short Sleeve Compression Running T-Shirt are designed to be used during training, which incorporates a technology that has been tested on hundreds of real athletes using 3D body scanning and dynamic compression measuring techniques. This helped SKINS determine exactly where compression is needed for optimal circulation, injury prevention and maximum comfort. Biomechanically placed Memory MX fabric over the spine and around the scapula and obliques provides constant, controlled compression and unrestricted movement to help you avoid the muscle damage that you sustain while at play - but only notice once you've cooled down. A hem gripper keeps the shirt in place as you move. Fast wicking technology conveys moisture away from the skin and helps regulate body temperature and UPF 50+ provides all round protection.