Heavy Olive Drab Vinyl. Slip, Oil & Fuel resistant. Chemical boot, we have large quanities in sizes 5, 7, 10, 11, 12. Fit perfectly over G.I. combat boots and other shoes/work boots. Govt. Issue top quality, made to last! NEW Avaliable in black in sizes 8 and 9. 3 Buttons in the front and a wide tongue which imparts a wide opening to get your foot in and out. Closes with an elastic band that goes around buttons.