The Men's Glacier Winter Boot is an extreme winter boot for the snowiest, coldest winters. The Thermolite insole is built to keep your feet plenty toasty. The exterior consists of a water-resistant, PU coated, synthetic upper which cinches at the top through a front zipper, keeping snow out when stepping into deep snowdrifts. Last but not least comes the rubber shell, built for traction on snow, water-resistant, and won't back down from snow, rock, or ice. Stylish and practical boot with water-resistant outer shell Front zipper for easy on and off Rugged outsole with slip-resistant tread provides sturdy footing Warm, cushioned Thermolite insoles ID 93EC