Design: 100% waterproof Designed for ease of entry In-Shoe Comfort: Rebound cushioning provides all-day comfort and energy return REBOUND BLOOM eco-friendly algae based EVA footbed that helps clean polluted water habitats BOGS Max-Wick evaporates sweat to keep feet dry Durability & Traction: BioGrip slip-resistant outsole with deep lug pattern provides reliable traction in wet conditions Additional Details: DuraFresh natural bio-technology activates to fight odors Comfort rated to -22degF/-30degF