The Scan Viper S1P Safety Trainers have a lightweight and breathable fly knit upper 200-joule steel toe caps and penetration resistant steel midsoles. Fitted with a dual-density PU outsole this cushioned sole ensures high levels of comfort. There is also an energy-absorbing heel which maintains comfort over long periods. The fuel and oil-resistant SR rated slip-resistant sole increases wear safety making these trainers ideal for tradespeople.EN ISO 20345-2022Safety Rating: S1PSlip Rating: SR1 x Pair of Scan Viper S1P Safety Trainers UK 4 EU 36-37.PTDSCAFWVIPTR4