When 140 years of dedication meets advanced materials the result is the modern Juneau Bivy. A winter work boot that's built tough with a heel and toebox reinforced with HELCOR - our most durable abrasion resistant material available. for additional weather-proofing the lightweight nylon ripstop outers is coated with 3M Scotchguard, ensuring it stands up to whatever nature dishes out. Moldable Removable Liner Helly Grip Ice Traction Outsole Lightweight EVA Midsole HELCOR Reinforced Coated with 3M Scotchguard Meets all SATRA Standards