It’s never too early to introduce your offspring to Neo-Tech insulation, DuraFresh bio-technology and machine washable technology. 100% Waterproof Constructed with 3mm Neo-Tech waterproof insulation DuraFresh natural bio-technology activates to fight odors BOGS Max-Wick evaporates sweat to keep feet dry Plush lining for warmth and comfort Machine washable Comfort rated to 14°F/-10°C