If your shoes can't take the heat, get into a Dempo. Extreme safety in extreme temperatures. If you work with metal, you'll feel better, fitter and safer working in these shoes. The Dempo's a lightweight leather boot with a double density rubber-PU sole. The Nitrile rubber outsole repels corrosive chemicals and substances, even liquid, molten metals. It's heat resistant up to 300C and is an 'easy on/ off' slip on boot.