100% Waterproof Membrane Flex-2 Chassis Dual Density 100% Poly Midsole 0g insulation 2.3 mm top grain leather upper Back by popular demand, the NEW Beartooth Mid v3. Featuring all of the same core features and upgrades as our new Beartooth v3 0g, built on a 7” platform for those who prefer an ankle-height boot. The core features of the Beartooth Mid– the flex-2 chassis, Rubber Outsole, and Dual Density polyurethane midsole – making it undoubtedly the most versatile boot in western mountain hunting.