What does the impact rating of the steel or composite toecap mean?
Safety toe boots are tested to meet one of two units of measurement for impact rating; 50 or 75 foot pounds. This test is performed by dropping a weight from a predetermined height at a designated speed. Thus, I/50 rated footwear will protect the toes from an impact of up to 50 foot pounds and I/75 rated footwear will protect the toes from an impact of up to 75 foot pounds.