Upper: These safety shoes meet the European standard of 200 joules of impact resistance, effectively preventing foot crushing. Lining: The breathable mesh allows air to circulate, and the textile lining offers superior moisture-wicking properties. Keep your feet comfortable even after a long day at work. Outsole Material: Puncture-resistant Kevlar midsole. The high-quality, slip-resistant outsole with air cushioning absorbs shocks more effectively, providing better grip and comfort for your feet. You'll feel like you're walking on carpet all day. Heel Type: Flat heel Shoe Width: Medium Closure: Lace-up. These safety shoes can be used for walking, outdoor activities, construction, work, and outdoor sports. This is not just a safety shoe, but also a sports shoe that can be worn anywhere. If you need other sizes, please contact customer service.