The as504 aspen is a non-metal safety shoe with a recylced 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