Impact testing determines the amount of protection to the toe under various foot pounds of force. Compression testing determines the amount of static pressure a steel/composite toe cap can withstand. Our boots are I75/C75 Electrical Hazard. Footwear is built with nail-free construction to help insulate you from the ground to slow down conduction but is not intended to be primary protection against electric shock. Leather footwear must be dry. Our electrical hazard boots meet and exceed ASTM electrical hazard standards. Constructed using no metal material or parts. Perfect for working environments that require passing through metal detectors. Built with an outsole design and materials that help provide slip-resistance and traction on various surfaces.