Designed for the icy winters of Northern climes, these boots will keep your feet toasty warm this winter. The built-in retractable crampons (easy to put on and take off) help prevent slipping on ice or snow, so you don’t have to worry. The insulation will guarantee you stay warm all day, plus, they’re as comfortable as slippers! With their extra-wide opening, they’re easy to put on and take off. Don’t get cold feet this winter! Synthetic sole. Plastic and synthetic material on the outside and acrylic on the inside. Heel approx. 3 cm.