The AS502 Oak is a non-metal safety boot with a leather upper a fibre glass toe cap and a anti-penetration non-metallic midsole.Fully Non-Metal First Safety Boot Made with 57% Recycled Pre-Consumer LeatherRecycled Mesh LiningRecycled Mesh Tongue and Padded CollarPull on Recycled Nylon Loop at the backRecycled Mesh Lined Romovable PU FootbedMoulded PU Scuff Cap for Extra DurabilityInjected PU Midsole Enhances Comfort and Shock Absorption15% Recycled Rubber in OutsoleOutsole Heat Resistant to 300 DegreesOil Resistant Outsole