Unnamed peaks in the Lower 48? Head to mile marker 203 on the edge of Glacier National Park, start hiking, and find out. You'll need traction and waterproofing for the snowfields, protection from the sticker brush, and stability for the scree and sheer mileage. Better take the Firebrand II.O FIT Insole(TM)Our proprietary insole is what we're known for. Molded to match the specific shape and construction of every pair we make, this purpose-designed technology delivers the kind of fit, feel and performance that's unmatched in the industry.Sawtooth MidsoleDual density EVA, nylon shank - Great for the everyday, whether it's on the AT or your local trail. Featuring a dual-density EVA midsole that provides cushioning and stability, and a nylon shank that gives added support under foot.Sawtooth OutsoleA thru-hiker cult favorite and classic Oboz outsole, built to be versatile, flexible and supportive.The map molded in the bottom of the outsole features the Sawtooth mountain range near Sun Valley, Idaho.B-DRY WaterproofThere's no denying feet sweat and trails can get muddy. There's also no denying the ability of our proprietary waterproofing system, B-DRY, lets sweat escape while keeping moisture out.Rubber Toe CapProtects your toes from rocks, roots and trail debris while adding improved durability.Upper: Waterproof nubuck leather & highly abrasion-resistant textile, Oboz B-DRY waterproof/breathable membrane, molded rubber toe capConstruction: Board lastedMidsole: Dual density EVA, nylon shankHeel Rise: 15mmWeight: M9(1/2PR): 18.3 oz / 519 g