Looking for the best way to stay cool on summer hikes? Stay cool when the heat is on with Columbia Omni-Freeze™ Zero Ice, our most advanced cooling technology designed to keep yoy cool even in the toughest conditions. In this video, we break down how Omni-Freeze™ Zero Ice works and put it to the test using thermal imaging. Watch as we compare the Columbia Diamond Peak Shirt featuring Omni-Freeze™ Zero Ice against a standard shirt to showcase the difference in cooling performance. Built with touch-activated and sweat-activated cooling technology, Omni-Freeze™ Zero Ice is engineered to help keep you cool, dry, and comfortable during summer hikes, long days on the trail, backpacking trips, travel, and other high-heat activities. Why Omni-Freeze™ Zero Ice? ✅ Industry-leading cooling technology ✅ Touch-activated and sweat-activated cooling ✅ Advanced moisture management ✅ Fast-drying comfort ✅ High breathability for active pursuits ✅ Ideal for hiking, backpacking, trail running, and outd...