Although there is some dirt from on-site work, I think it can still be used. Uses "GORE-TEX〓 Fabrics" with excellent waterproof and breathable properties. Keeps the inside of the shoes comfortable even on rainy days. JSAA standard A type certified product. Magic belt for easy on and off. Uses lightweight toe cap made of glass fiber reinforced resin. The design of the outsole and the rubber compound have been devised to pursue excellent grip. The heel of the outsole is equipped with "GEL" (gel), a shock-absorbing material also used in Asics sports shoes, to enhance cushioning. Uses oil-resistant rubber that is not easily deteriorated by oil. Upper: Main body: Synthetic fiber + artificial leather Upper: Reinforcement: Artificial leather Outer sole: Rubber sole