When it counts, either in the thick of a structural fire, wildland fire or medical emergency response, Thorogood engineering provides the durability for a long-lasting duty life and the components that allow safety professionals to concentrate on their jobs - protecting and serving the public. Upper: Black oil tanned logger leather, flame and cut-resisting. Lining: Dri-Lex tongue, comfort weave. Removable felt footbed insole, rubber and leather midsole. Shank: Composite shank for totally non-heat conductive construction. Outsole: Thorogood’s Vibram fire and ice sole. Special features: Kevlar thread. Meets the requirements of NFPA 1977 protective clothing and equipment for wildland fire fighting, 2011 Edition. UL Certified. Made in USA by ISO 9001 certified shoe company. Material: Leather, Rubber.