Timberland PRO Men's Titan 6" Safety-Toe Boot Leather Imported Synthetic sole Shaft measures approximately 5.75" from arch Heel measures approximately 1.25" Platform measures approximately 0.75" Full-grain leather work boot with PowerFit comfort system for ultimate all-day wear featuring moisture-channeling air-mesh comfort lining with Agion treatment to keep foot dry TiTAN safety toe cap meets I/75 , C75 impact and compression ASTM F2412-05 and ASTM F2413-05 safety standards Outlast Adaptive Comfort footbed cover regulates temperature Nylon diffusion shank for torsional rigidity Electrical Hazard Protection meets ANSI Z41 PT99 standards to provide protection from open circuits