FeaturesWater resistant nylon upper100% Waterproof injected rubber shell with rugged outsoleBLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitatsDuraFresh natural bio-technology activates to fight odorsBOGS Max-Wick evaporates sweat to keep feet dryComfort rated to -22F/-30CFeaturesWater resistant nylon upper100% Waterproof injected rubber shell with rugged outsoleBLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitatsDuraFresh natural bio-technology activates to fight odorsBOGS Max-Wick evaporates sweat to keep feet dryComfort rated to -22F/-30C