The Under Armour Base 3.0 Legging delivers aggressive warmth in extreme cold conditions. Rugged 93% polyester, 7% elastane ColdGear thermal grid fabric traps heat in tiny pockets and circulates it to keep you warmer longer. Quick-drying construction transports moisture away from the skin to keep you drier, lighter, and more comfortable. Four-way stretch fabrication allows greater mobility and maintains its shape, while antimicrobial technology helps fight odors so you stay fresher longer. Smooth flatlock stitching and ergonomic seam placement help reduce chafing and allow for easy layering. The wide, flat winner waistband delivers a smoother, sleeker silhouette. Fitted design. Imported.