The special shape and careful choice of materials, combined with the new Sling Strap system, mean it is able to tackle any situation.Blade material: technopolymer double material with high performance and high resistance to impact even at low temperatures • Shoe material: combination of technopolymer and thermoplastic elastomer. 1st plus: Sling Strap System. 2nd plus: Ribbing protectors to guarantee longer life. 3rd plus: Anti-slip system carefully designed to work in all positions.