These are the 6" Aeromet Work One Work Boot. They are made with a Black Full Grain Leather and a Direct Injection Construction. They have a Comfort Weave Lining and a Poron 4000 Insole. The Midsole is made of Polyurethane and they have a Fiberglass Shank. The Outsole is a Heat Resisting Vibram Pivot-Grip Sole with a 90 degree Heel. This boot also has the ASTM F 2413-05 M/I/75/C/75/Mt/75 Steel Toe, Electrical Hazard Protection, and the Patented Aeromet Technology. They are made in the USA by an ISO 9001 Certified Shoe Company.