Maoko Sports Fitness Compression Short-Sleeve Tight Shirt Baselayer for Men Available in sizes S,M,L,XL,2XL; Find your size on the size chart picture .If you prefer a looser fit,go up a size. 90% Polyester, 10% Spandex; Net Weight:120g Soft, breathable and moisture-wicking fabrics keep you dry and comfortable,compression fit improves blood flow and oxygen supply to your muscles Suitable for all sports indoors and outdoors,running,basketball,Fitness,cross training and etc Ergonomic compression fit for enhanced range of motion,Moisture Transport System sweeps away sweat and dries quickly