ATK truly works unconventionally. While everywhere else "carbon" equals "light", at ATK "carbon" means "bombproof structure" at the lowest weight. Innovation is the key ingredient. Product Features: Weight 305 g Materials Alu 7075, Stainless Steel, POM, 30% Carbon Fiber Composite Release 5-12 Adjustment 25 mm Ski brake 86, 91, 97, 102, 108, 120 mm Walking modes: Flat, +27,5, +30, + 44, + 49 mm Snow Pack ProofA(R) toe piece Heel elastic travel: 12 mm (E.R.S.) Tech Specs: Release Value : Adjustable 5-12 Weight: 305 g (10.76 oz) Weight Per Pair : 610 g (1 lb 5 oz)