La Sportiva Aequilibrium ST GTX Mountaineering Boots - Men's Black/Yellow 45US. The state-of-the-art Aequilibrium ST 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 ST GTX Mountaineering Boots - Men's: Manufacturer: La Sportiva Gender: Male Age Group: Adults Men's Shoe Width: Medium Color: Black/Yellow Footwear Type: Shoes Footwear Closure: Laces Condition: New Features of La Sportiva Aequilibrium ST 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 Heel gaiter with integrated puller for an easy and precise fit 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 ST GTX Mountaineering Boots - Men's La Sportiva ZFMS098-K00Y00-45: Aequilibrium ST GTX Mountaineering Boots - Men's Black/Yellow 45US