Under Armour's famous ColdGear base layers are designed to keep you warm, dry, and light. This fitted legging is made from quick-drying, 4-way stretch, 4.9-oz. 93% polyester, 7% elastane. Mid-weight Base 2.0 layers are highly versatile garments for "cold" conditions and moderate activity levels. Ergonomically placed flatlock stitched seams and performance waistband offer ultimate mobility and comfort next to your skin. Convenient brief-style working fly. ArmourBlock anti-odor technology helps reduce unpleasant body odor.