Patagonia Cragmaster Women leather Nubuck waterproof leather upper for durability and comfort; protective rubber toe and heel for rocky scrambles Vibram IdroGrip New Boulder climbing rubber outsole provides excellent grip, but will mark surfaces and is not recommended for casual wear Toe-to-toe lacing system provides a precise fit; 15% recycled EVA footbed; 2mm 15% recycled EVA insole Low profile, polyurethane midsole provides cushioning and support for long haul without compromising feel (4mm drop: 9mm heel; 5mm toe) Nylon 6.6 injection molded arch shank provides support under the arch and a natural forefoot flex