Lightweight 3M™ Thinsulate™ insulation provides warmth in any conditions, while stretch lining panels allow the Bliss Pant to move naturally with your body. No matter how demanding the conditions, CZV™ - Control Zone Ventilation regulates temperature to trap in a ‘just right’ amount of heat and circulate air where you need it the most. A contoured fit flatters your body, keeping you stylish, while still promoting a full, unimpeded range of motion.