Magnum Men's Stealth Force 8.0 Side Zip Waterproof I-Shield Military and Tactical Boot 100% Leather and Textile Imported Synthetic sole Shaft measures approximately 7.25" from arch Boot opening measures approximately 10.5" around Full grain leather and 1,800 denier nylon upper Ykk circular side zipper Astm rated electrical hazard (eh) protection Chemicals out Airport safe