100% Waterproof Constructed with 7mm Neo-Tech waterproof insulation DuraFresh natural bio-technology activates to fight odors BOGS Max-Wick evaporates sweat to keep feet dry Durable, hand-lasted rubber with a four-way stretch inner bootie Self-cleaning outsole 90° heel for support on rough uneven terrain BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats. Nylon shank in midsole for support and stability Comfort rated to -40°F/-40°C Specs based on Women's Size 7