membrane prevents water penetration while allowing moisture to vent. The upper is made from 100% recycled knit material, including laces and webbing. A bellows tongue is included to prevent debris from entering. The lining and removable insole are both made from 100% recycled mesh. The shoe also features a molded nylon arch shank and Merrell Air Cushion in the heel for shock absorption and stability. A rock plate provides additional protection. The midsole is made from 10% recycled EVA foam, and the outsole is Merrell's mountain-grade Quantum Grip rubber. The shoe is flat and features a lace-up closure, with a rubber sole for added traction. It is called the Bravada 2 Waterproof.