Blackrock Lincoln Metatarsal Waterproof Safety BootsThe Lincoln waterproof work boots feature Poron XRD metatarsal technology that absorbs impact from falling objects, along with a waterproof membrane carefully sewn into the upper to keep feet dry. They include both toe cap and midsole protection made from lightweight, metal free composite material, plus a heavy duty bump cap for added durability. The ultra hardwearing PU rubber, HRO rated, anti slip sole is heat resistant up to 300C, making these