Even more comfortable with GORE-TEX's Invisible Fit water proof membrane for a lighter, more flexible construction to help avoid pressure points. Grounded in a Vibram Megagrip with Traction Lug outsole for increased bit on loose soil, this trail icon employs a foot-cradling heel bolster, lightweight, responsive midsole compound, and a protective toe rand for charging through the rough stuff. Bring it, weather.100% recycled polyester mesh. Waterproof GORE-TEX Invisible Fit membrane. Protective toe rand. Bolstered heel collar construction. Vegan. Laces with 70% recycled nylon and 30% recycled polyester.All new lightweight, resilient foam. CMEVA. Late stage MetaRocker.Vibram Megagrip with Traction Lug. 5mm Lugs.Sku: 1155151BCKT