They are high-quality racing boots in D-Stone™ fabric with high grip TPU inserts. Practicality and safety are guaranteed through the replaceable magnesium sliders, the protective nylon on the shell, heel and toe, and the exclusive D-Axial system in TPU that prevents any twisting of the foot. The Dainese TORQUE D1 OUT are the ultimate in lightness and performance. They feature an internal retention band, rapid fastening and air channeling systems, magnesium inserts on the outer side and heel, and flexible joints to increase comfort when off the bike. The boots are CE - Cat. II certified according to standard EN 13634.