Design: 100% waterproof gold certified leather upper Heel pull loop for easy on and off In-Shoe Comfort: Plush lining for comfort and warmth BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats BOGS Max-Wick evaporates sweat to keep feet dry Durability & Traction: GlacialGrip slip-resistant outsole for maximum traction on wintery surfaces Additional Details: DuraFresh natural bio-technology activates to fight odors