Composition : Meta-Aramid/Modacrylic. Single-layer construction with an average total weight of 170 g/m². Weight : Size 52 = 620 G Standard sizes: XS-XXL Features : completely revised in its design and construction, the new One suit is lighter and more comfortable than the previous version. Preformed sleeves, a double slider zip, hidden pockets, an adjustable belt and adjustable ankle flaps make it an outstanding suit for drivers in national-level or historic races, mechanics, technicians or race officials.