The AS504 Aspen is a non-metal safety shoe with a recycled leather upper, a fibre glass toe cap and a anti-penetration non-metallic midsole.- Fully Non-Metal First Safety Shoe Made with 57% Recycled Pre-Consumer Leather- Recycled Mesh Lining- Recycled Mesh Padded Collar- Recycled Mesh Lined Romovable PU Footbed- Injected PU Midsole Enhances Comfort and Shock Absorption- 15% Recycled Rubber in Outsole- Outsole Heat Resistant to 300 Degrees- Oil Resistant Outsole- Antistatic- Energy Absorbing Heel