Features of the Keen Men's The Slater II Boot Removable, Metatomical PU Footbed EVA Midsole For Lightweight Cushioning Non-Marking Rubber Outsole Leaves No Trace KEEN. WARM Insulation Rated To -4F/-20C Eco Anti-Odor For Freshness Environmentally Preferred Premium Leather From Lwg-Certified Tannery PFC-Free, Durable Water Repellent