Designed for the demands of World Cup XC racers Christoph Sauser & Burry Stander this ultra-light & stiff carbon shoe offers Body Geometry performance & Boa dial adjustability. The S-Works MTN shoe is the pinnacle of cross-country performance. Light & stiff FACT carbon midsole with thermoplastic replaceable lugs for confident traction: 11 stiffness index Full Body Geometry features in outsole & High Performance Footbeds combine to reduce hot spots & improve knee/foot alignment Lightweight Boa S1-M incremental zonal closure allows on-the-fly adjustments for a dynamic fit; L/R shoe forward rotating Four times more micro adjustment than a standard buckle closure Replaceable high-strength braided steel lace Open-back lace guides for easy on/off Engineered Micromatrix upper is light durable & supple fitting with welded reinforcement on medial heel for durability Ultra-vented tongue for breathability Velcro front strap adjusts forefoot width & volume