La Sportiva Aequilibrium Top GTX Mountaineering Boots - Men's Black/Yellow 46.5. The state-of-the-art Aequilibrium Top GTX orchestrates a perfect blend of ultralight construction durable materials superlative comfort and elite performance for moving fast in the mountains Specifications for La Sportiva Aequilibrium Top GTX Mountaineering Boots - Men's: Manufacturer: La Sportiva Gender: Male Age Group: Adults Men's Shoe Width: Medium Color: Black/Yellow Footwear Type: Shoes Activity: Mountaineering Weight: 23 oz Fabric/Material: Stretch Honey-Comb Guard Footwear Upper Fabric/Material: Stretch Honey-Comb Guard Insole Material: Hybrid Carbon-Nylon Weave Lining Material: GORE-TEX Outsole Material: Vibram Mont Rubber Compound Midsole Material: High-Cushion PU Inserts Features of La Sportiva Aequilibrium Top GTX Mountaineering Boots - Men's Double Heel increases downhill breaking and promotes fluid strides reducing muscle fatigue Ergonomic Last wraps the foot allowing for a precise and comfortable fit for all-day wear Rubber Guard Shell Construction and Internal PU Inserts offer high-cushion and an overall lighter boot 3D Flex Evo Directional Joint for better support and increased ankle mobility Differentiated lacing utilizes Quick Ankle Strap BOA Fit System integrated into the lower gaiter Vibram Mont Outsole with Impact Brake System lugs excels on technical terrain Compatible with various non-automatic and semi-automatic crampons. Crampon compatibility is NOT ensured and boot-crampon compatibility needs to be inspected Package Contents: La Sportiva Aequilibrium Top GTX Mountaineering Boots - Men's La Sportiva 21X-999100-46.5: Aequilibrium Top GTX Mountaineering Boots - Men's Black/Yellow 46.5