This relaxed-fit crew is Under Armour's UA Base solution for superior thermal protection. Provides maximum warmth in extreme cold or lower-exertion activities. Lightweight ColdGear grid fabric is engineered to trap heat by maintaining core temperature and quick-drying moisture transport. ArmourBlock antimicrobial technology for maximum scent reduction. Ergonomic seam placement and flatlock stitching for superior mobility without chafing. Features raglan sleeves. Fitted. 95% polyester, 5% elastane fabric. Imported.