Design: 100% waterproof protection Soft textured rubber upper Heel pull loop for easy on and off Steel shank in outsole for stability and support In-Shoe Comfort: Plush lining for warmth and comfort BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats BOGS Max-Wick evaporates sweat to keep feet dry Durability & Traction: Slip-resistant outsole for enhanced traction in wet conditions Additional Details: Comfort rated to -13degF/-25degC DuraFresh natural bio-technology activates to fight odors