Reebok safety shoe S1P SRC ESD Fusion Flexweave Athletic Work, size 39 This shoe has a protective toe cap made of composite material. The Ultraknit and Flexweave upper provides lightweight, durable support with breathability and strength. The Floatride Energy foam midsole is lighter than traditional EVA and offers flexibility, resilience and premium cushioning. The non-slip outsole is designed with a foot mould for adaptive flexibility. Upper: Ultraknit and Flexweave. Lining: Moisture-resistant nylon mesh. Insole: Removable EVA cushioning insole. Outsole: Non-slip rubber sole. Midsole: Floatride Energy foam, non-metallic. Special features: Extra wide toe cap, 100% non-metallic, ESD. CE category II. EN ISO 20345:2011 S1P SRC ESD.