100% Waterproof - BLOOM eco-friendly algae-based EVA footbed that helps clean polluted water habitats - Non-marking self-cleaning BioGrip slip-resistant outsole - DuraFresh natural bio-technology activates to fi ght odors - Bogs Max-Wick evaporates sweat to keep feet dry - Crafted with ultra-durable and fl exible rubber - Soft Toe (not a safety toe)