Zamberlan Thunder GTX Hiking/Backpacking Boot - Men's Brown/Orange 8. Developed for the Thunder the new Adaptive Hero System acts with each step ensuring stability and cushioning on different surfaces while giving more energy to movement without tiring the foot. AHS sandwiches a TPU insert between two low-density layers of EVA in the midsole. The soft upper layer gives your foot a cushioning effect while walking while the bottom layer absorbs negative impact with the ground adapting easily to uneven terrain. For steep looser terrain the Vibram Hero outsole's deep multi-directional lugs and pronounced heel keep you steady in any conditions. The Thunder uses Hydrobloc-treated suede uppers backed by GORE-TEX Performance Comfort membranes for waterproof breathable comfort guaranteed for the life of the boot. Handmade to be your ideal trail companion the Thunder GTX is lightweight and comfortable designed built and backed by the bootmaking expertise developed by three generations of Zamberlan family in Italy. Specifications for Zamberlan Thunder GTX Hiking/Backpacking Boot - Men's: Manufacturer: Zamberlan Gender: Male Weight: 540 g Footwear Type: Boots Color: Brown/Orange Footwear Upper Fabric/Material: Suede With Hydrobloc Treatment Insole Material: Polyester PFAS-free felt Midsole Material: Low Density PU Wedge Outsole Material: Vibram Lining Material: GORE-TEX Features of Zamberlan Thunder GTX Hiking/Backpacking Boot - Men's: Waterproof and Breathable: Equipped with a PFAs-free GORE-TEX membrane it keeps your feet dry while ensuring excellent breathability for all-weather performance. Advanced Cushioning & Stability: Featuring Zamberlans exclusive Adaptive Hero System the boot delivers exceptional cushioning and stability keeping you comfortable even on the toughest terrain. Proven Grip: Exclusive Vibram Hero outsole developed from our longstanding partnership for the tested proven traction on varied surfaces in all conditions. Durable Protection: Reinforced with a protective PU toe rand and heel area it shields against abrasions and impacts for long-lasting reliability. Lightweight Comfort: Engineered for effortless walking the boot provides a perfect balance of comfort and mobility without compromising durability. Sustainable Materials: Crafted with suede from an LWG-certified tannery. The Thunder also includes 100percent recycled laces and a PFAs-free water-repellent treatment for enhanced sustainability. Built for the Long Haul: Made in Italy resoleable with original Vibram outsoles. Package Contents: Zamberlan Thunder GTX Hiking/Backpacking Boot - Men's Zamberlan 1203ZBOM-42-8: Thunder GTX Hiking/Backpacking Boot - Men's Brown/Orange