Signature Moisture Transport System wicks sweat up and away from your skin 100% Polyester 1/4 Zip front with upright collar. Re-engineered athletic fit technology prevents the growth of odor-causing substances UA Tech fabric is quick-drying, ultra-soft and has a more natural feel HeatGear is engineered with a blend fabric Under Armour Mens Locker 1/4 Zip Pullover 100% polyester UA Tech fabric is quick-drying, ultra-soft Moisture Transport System wicks sweat technology prevents the growth of odor causing substances HeatGear is engineered with a blend fabric featuring the signature Moisture Transport System and reliable compression. It's designed to fit tight to your skin, under your outerwear. Material: 100% Polyester. Available in 5 color choices. 1293901