Eliminate the gaps in your work footwear collection with the Dr. Martens Isambard Steel Toe Waterproof boot, part of the Superspan collection. A host of performance features are sure to make this men's lace-up work boot an everyday favorite, from its double- and triple-stitched, leather and synthetic upper to its combination Cosmo™ Sketch/Cosmo HBR® waterproof membrane lining. This boot guards against a range of jobsite hazards thanks to its ASTM-rated steel toe and electrical hazard protection. The Dr. Martens Isambard ST Waterproof ankle boot has a removable, AgION® Antimicrobial-treated Smartmask® insole—that can be replaced with an orthotic—and compression-molded EVA midsole for all-day comfort. A red rubber outsole lends steady traction until the day is done.