F-/B: GD Sports shop（We support resale.） size for men eu 38-42 Focus on the stepping experience Combined with the design of the arch strap, it provides superior support and fit, the local cushioning configuration effectively slows down the impact on the race. .Dri-fit technology keeps the feet dry and comfortable, and the local cushioning design helps cushion. The forefoot thread catching design helps reduce the slippage in the shoes. The arch bow strap design creates a firm and comfortable fit experience. .Fabric: Polyester: 55% Nylon: 25% Cotton 16% Spandex: 4% .Please note that the same item but different colors may have some differences in materials. The product descriptions on this page are for reference only. Please refer to the actual product for details.