From swamps and streams to deserts and mountains, Merrell's Phaser Peak Waterproof Backpacking Boots will take you over rough terrain and through variable conditions with aggressive Vibram traction, a backpacking insole, durable midsole, and waterproof membrane. This product will be shipped directly from Merrell and will leave their warehouse in 2 3 business days. Eligible for UPS ground shipping only. . Grade 6 nylon insole adds stability for backpacking with a medium pack. Vibram Trek rubber outsole for aggressive traction and grip. High cut nubuck leather upper for durability, ankle support, and protection. M Select Dry waterproof, breathable membrane keeps water out and lets perspiration escape for dry comfort. Compression molded EVA midsolefootframe provides cushioning. Merrell air cushion in the heel absorbs shock and adds stability. M Select Fresh naturally prevents odor for fresh smelling feet. Removable EVA footbed adds comfort. Bellows tongue keeps debris out. Anti rust bronze loop lacing system for secure lacing. External heel counter adds stability.