This extremely warm base layer is perfect for a cold hunting trip. The soft, 100% polyester fabric is quick-drying and thermally insulated. ColdGear technology utilizes dual-layer, moisture-wicking fabrics to keep you warm, dry, and light. UA Scent Control Technology suppresses the growth of bacteria to help reduce odors, while working longer and recharging better than carbon scent control. Ergonomic seam placements offer comfort to this fitted design.