Exterior finished with nylon jersey upper that easily folds down. Plush lining for extra warmth. 100% waterproof. Machine washable. Constructed with 2mm Bogs Neo-TechTM insulation. Lined with Bogs Max-Wick™ to absorb and evaporate moisture and DuraFresh bio-technology that activates to fight unwanted odors. Dual-density, contoured EVA footbed with DuraFresh. Slip-resistant, molded rubber outsole. Easy pull-on handles. Comfort rated from temperate to 14°F/-10°C.