The 8 Steel Elements Steel Toe is designed with EnergyBed™ & incorporated TPU ladder shank, ankle padding & goodyear welt construction, milled never-cut hooks, triple stitched reinforcements & safety stitch toe, a TPU kickoff, a high heat outsole, a split suede tongue and gusset, Rocky Waterproof construction, high abrasion heel support, and a 3mm lug depth outsole with dirt release, FR lacing and stitch. This boot meets the ASTM F2413 I/75 C/75 Protective Toe Classification and ASTM F2413 Electrical Hazard Standard.