Features • 100% Waterproof • Durable hand lasted rubber with a four way stretch inner bootie • Constructed with 7mm Neo-Tech™ insulation • Lined with Bogs Max-Wick™ to keep feet dry • Contoured eco EVA footbed • DuraFresh organic bio-technology activates to fight odors • Non-marking and self-cleaning outsole • Comfort rated to -40?F/-40?C