Sidi Sd15 Mtb Shoes In Light Grey/Black. They Incorporate The Following Technologies:- Material: ´´Polytex´´: ´´Eco-Friendly´´ Fabric That Offers Strong Resistance To Tearing, Laceration And Fading.- Tecno-3 Closure System With Dyneema? Cables: Guarantees Precise Micrometric Closure/Docking.- Reinforced Heel That Keeps The Foot In An Optimal Position And Prevents The Shoe From Deforming Due To Extreme Performance Or Prolonged Pressure.- Outdoor Sole Made Of Rubber That Offers Great Grip In Muddy And Loose Terrain Conditions.- Pull Tab: A Handy Loop Makes It Easier To Put On The Shoe.