If you are spotted in a whiteout, might as well look amazing. 100% Waterproof Boot shaft easily adjusts to fit different size calves Constructed with 7mm Neo-Tech waterproof insulation GlacialGrip slip resistant outsole for maximum traction on wintery surfaces DuraFresh natural bio-technology activates to fight odors BOGS Max-Wick evaporates sweat to keep feet dry BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats. Fleece lining for warmth and comfort Comfort rated to -58°F/-50°C