DeWalt Rigger boots have high quality leather uppers with a breathable lining for all day comfort. The soles are made from durable rubber which is heat resistant up to 300°C and oil resistant.Incorporated within the soles steel plates that protect your feet from sharp objects such as nails. The steel toe caps are tested to withstand up to 200 joules and compression tested to a withstand a minimum of 15,000 Newtons, which is the equivalent to over 1 tonne. The leather outer is also tested for tear strength and can withstand a minimum of 120 Newtons.The DeWalt Rigger boots conform to CE-EN-345-1. 1993