SUN MOUNTAIN COLTER II JACKET MEN'S JACKET

Introducing the Colter II vest, designed for active people. With insulated panels for core warmth and 37.5® insulation for a weight-to-warmth ratio like no other, this packable vest ensures comfort and flexibility with 4-way stretch sides. Say goodbye to bulky layers and hello to your new must-have vest. Whether you're training, competing or recovering, your performance depends on your ability to stay in your comfort zone for as long as possible. 37.5 technology removes moisture before it turns into sweat, helping you maintain an ideal core temperature so you can perform at your best. Air-conditioned clothing with 37.5® technology has been proven to reduce the rate of core temperature buildup, increasing athletic performance by up to 26%.