The Zamberlan® Vioz GTZ is a modern version of a traditional full-grain leather backpacking boot that's ideal for extended backpacking trips, long trekking, and all-season hiking.Hydrobloc® full-grain leather upper with PU coated reinforcement.High-resistance treatment on the hardware.Combination GORE-TEX® and MICROTEX® lining for breathability and climate control.Zamberlan® 3-Action Footbed is designed to respect the foot anatomy, reduce heel strike, follow the natural foot movement during walking, reduce muscle fatigue, and deliver total comfort and increased performance.Zamberlan® Z.A.S. Air System is a special construction, design method, and choice of components to optimize comfort and make the boots extremely lightweight and breathable.Zamberlan® Z.C.S. Cushioning System utilizes different types of shock absorbing materials with high cushioning and stabilizing effects.R.R.S. (Rubber Reinforcement System) is a special rubber reinforcement applied to the upper that ensures maximum abrasion resistance, enhances water repellence, and helps the boot to keep its shape during extended use.Thermoplastic rand on the toe and heel.Resoleable Zamberlan® Vibram® 3D outsole has been expressly developed for backpacking and hiking use with three specific components: an aggressive Vibram special rubber outsole with deep lugs, a low density PU midsole, and a TPU stabilizer.Made in Italy.Product measurements were taken using size EU 44.5 (US Men's 10), width D - Medium. Please note that measurements may vary by size.Measurements: Heel Height: 1 3⁄4 in Weight: 1 lb 10 oz Circumference: 13 1⁄2 in Shaft: 5 1⁄2 in Platform Height: 1 in SKU 7291241