The Series 100 Side Zip Waterproof Composite Toe Boot augments the highly successful Series 100?? line with a ASTM F2413-11 rated safety toe that meets or exceeds I/75 and C/75 Impact and Compression Resistance and EH Electric Hazard. Premium memory foam insole adds a layer of all-day comfort for those long, demanding shifts. Premium memory foam insole ASTM F2413-11 rated safety toe that meets or exceeds I/C 75 Impact and Compression Resistance and EH Electric Hazard Waterproof and seam-sealed with HyrdoGuard Engineered using true US sizing for superior fit with excellent weight distribution for all-day comfort Polishable full grain leather 1000D nylon upper Friction-resistant speed lacing system with 550 paracord lacing Arch design resists wear from ladders and fast-roping Open cell air mesh foam provides full foot air circulation for maximum comfort Breathable liner wicks and regulates temperature, treated with Aegis?? to prevent odor Oil- and slip-resistant rubber outsole for excellent traction and impact absorption NTOA member tested and approved FREE optional fit inserts included Imported