Crafted with ultra-soft and flexible rubber - 100% waterproof - Constructed with 3mm Neo-Tech waterproof insulation - BioGrip slip-resistant outsole - BOGS Max-Wick evaporates sweat to keep feet dry - Rebound cushioning provides all-day comfort and energy return - DuraFresh natural bio-technology activates to fight odors - Shank in outsole for stability and support - BLOOM eco-friendly algae-based EVA footbed - Soft Toe (not a safety toe)