The Bogs Whiteout Adjustable Calf Tonal Camo Black is a 100% waterproof boot with DuraFresh natural bio-technology to prevent odors. The boot features fleece lining for warmth and comfort. The boot is constructed with 7mm Neo-Tech waterproof insulation and a GlacialGrip slip-resistant outsole for maximum traction. The BOGS Max-Wick keeps your feet dry. It includes BLOOM eco-friendly, algae-based EVA footbed and is comfort rated to -58°F/-50°C.