Under Armour Men's Armour Fleece Performance Sweats Armour&reg; Fleece fabrication delivers a brushed inner layer and a quick-drying, lightweight outer layer The soft inner layer traps heat like a champ, keeping you warm and comfortable Lightweight, 4-way stretch construction improves mobility Signature Moisture Transport System wicks sweat away from the body, so you stay drier, longer 100% Polyester