CLOSEOUTS . This exchanger mask from Polar Wrap is a powerful new weapon in the battle against the cold. Patented heat exchanger technology lets you breathe warm humid air by taking the heat and moisture from exhaled air and adding it to air you inhale. This process helps raise your core temperature and warm your entire body. Minimal wrap-style mask 92% polypropylene, 8% spandex Hand wash, hang dry. CLOSEOUTS . USA. Size: One size fits most
