Mammut Taiss Light Mid GTX Shoes - Mens Black Arumita 12.5 US 11.5 UK. Weighing in at just 555 grams this is the lightest crampon-compatible mountaineering boot on the market. In alpine terrain our focus is lightness durability and performance. The Taiss Light Mid GTX brings these features together with an unrivalled array of materials and technology. Without compromising on dampening our developers have reduced the thickness of the Vibram sole to optimize feel. And thanks to the rigid carbon-fiber midsole you can expect the same high performance response and control synonymous with the Taiss. Mammut Georganic3D technology ensures enhanced comfort with all parts of the boot in contact with the foot designed for specific anatomical features. The elasticated mono-tongue construction helps relieve pressure points on the top of the foot. Specifications for Mammut Taiss Light Mid GTX Shoes - Men's: Manufacturer: Mammut Gender: Male Age Group: Adults Men's Shoe Width: Medium Heel Height: 11 mm Shoe Height: Mid Footwear Type: Boots Activity: Mountaineering Weight: 550 g Footwear Closure: 2 Zone Laces Fabric/Material: Ripstop Textile/Mesh Protection Footwear Upper Fabric/Material: Vibram Ascension Litebase Insole Material: Light PU Wedge Lining Material: Light PU Wedge Outsole Material: Schoeller Soft Shell Midsole Material: Microfiber Racing Features of Mammut Taiss Light Mid GTX Shoes - Men's Contact Control schoeller softshell material Vibram Litebase Board lasting 2-zone lacing: individual 2-zone lacing can be adjusted to accommodate different situations. Easy resoling Raised rubber rand Package Contents: Mammut Taiss Light Mid GTX Shoes - Men's Mammut 3010-00900-00520-1115: Taiss Light Mid GTX Shoes - Men's Black Arumita 11.5