Ferrand-New Cycling Riding Suit Set-Coolmax Short Sleeves Bike Jersey-Snake Please check seriously our SizeName chart in the pictures/description before placing your order Jersey Material: 100% Polyester COOLMAX: The Coolmax Pad clings closely to your skin and it is very soft.It can consistently resist bacteria and germ.It can absorb the sweat,keep your temperature and minimize the friction.Coolmax make your cycling drier and more comfortable. When you perspire,the jersey can keep you dry,helps keep the body temperature so that you feel much comfortable. Three layers ,anti-virus cushion,designed for long distance cycling