Under Armour Boys' Whitetail Graphic Short Sleeve T-Shirt 57% Cotton/38% Polyester/5% Elastane Imported Loose: Fuller cut for complete comfort Charged Cotton has the comfort of cotton, but dries much faster 4-way stretch fabrication allows greater mobility in any direction Moisture Transport System wicks sweat & dries fast Anti-odor technology prevents the growth of odor-causing microbes