Specifications include, but are not limited to: Thorogood, FireDevil 9 inch, Men's - Style Logger Construction: 6.5 - 7 oz 9 inch full grain leather uppers, black oil tanned or black rough Removable insole Goodyear storm Welt Construction Vibram outsole, steel shank Kevlar filament fire resistant thread NFPA 1977 Wildland Sizes; Men - 5 - 14 including half sizes through size 12 NO SUBSTITUTIONS WILL BE ACCEPTED. Thorogood, FireDevil 9 inch, Women's - Style Logger Construction: 6.5 - 7 oz 9 inch full grain leather uppers, black oil tanned or black rough Removable insole Goodyear storm Welt Construction Vibram outsole, steel shank Kevlar filament fire resistant thread NFPA 1977 Wildland Women's Sizes: 5 though 10, including half sizes. PLEASE NOTE, WOMEN'S BOOTS MUST BE WOMEN'S CUT BOOTS AND NOT SMALL MEN'S BOOT. NO SUBSTITUTIONS WILL BE ACCEPTED Thorogood, FireDevil 10 inch, Men's - Style Logger Construction: 6.5 - 7 oz 10 inch full grain leather uppers, black oil tanned or black rough Removable insole Goodyear storm Welt Construction Vibram outsole, steel shank Kevlar filament fire resistant thread NFPA 1977 Wildland Sizes; Men - 5 - 14 including half sizes through size 12 NO SUBSTITUTIONS WILL BE ACCEPTED Thorogood, FireDevil 10 inch, Women's - Style Logger Construction: 6.5 - 7 oz 10 inch full grain leather uppers, black oil tanned or black rough. Removable insole Goodyear storm Welt Construction Vibram outsole, steel shank Kevlar filament fire resistant thread NFPA 1977 Wildland Women's Sizes: 5 though 10, including half sizes. PLEASE NOTE, WOMEN'S BOOTS MUST BE WOMEN'S CUT BOOTS AND NOT SMALL MEN'S BOOT. NO SUBSTITUTIONS WILL BE ACCEPTED