Durable, supportive, and waterproof, the Yellowstone II from Oboz will keep your feet comfortable for miles of hiking on your favorite trails. Dual density EVA midsole for shock absorbing cushioning. Nylon shank for lateral and torsional flex control. High friction nonmarking carbon rubber outsole for durable traction and grip. Waterproof nubuck leather upper with BDry waterproof, breathable membrane. 3D molded external heel counter to keep the heel from slipping and to keep the foot centered. Lower density heel pod in midsole for shock absorbing cushion. BFit deluxe footbed for added cushion, well defined arch support, and a shaped heel pocket to keep the foot centered properly inside the shoe perforationsunderside channels promote airflow and breathability to keep feet comfortable. Multidirectional lugs for traction on varied terrain. Strobel lasted for a blend of stability and flexibility.