UA Base 4.0 was designed to battle the coldest and most brutal conditions. Facing insane temperatures? This is what you're going to want to put on first.
UA's warmest base keeps you comfortabl in even the extreme chill of a cold treestand
Exclusive UA Scent Control technology lasts longer and works better, keeping you undetected
Soft, brushed negative grid interior traps hot air, providing superior warmth