The Under Armour Treestand Base Layer system is designed for those ultra-cold, late-season hunts when you are sitting motionless on a stand for hours. Constructed of extreme warmth thermal insulation, the Treestand system will help keep you warm, focused and ready for a shot on that big buck you've been scouting. The ergonomic seam placement will ensure that poorly placed seams will not keep you moving to find comfort in the field. The moisture-wicking properties of the Treestand base layers help draw body moisture away from your skin, keeping you warmer, once you stop moving. Under Armour's Scent Control system will help keep your scent down, allowing for closer shooting opportunities at game.