Steel Toe: left and right asymmetrical, wider steel toes offering maximum comfort and unobtrusive fit that meet or exceed ASTM F2412 and F2413 ESD 100 compression and impact safety standards Fit & DESIGN: built on a specific women’s last (foot form) that is wider than the Industry Norm for improved fit and comfort; The sizes listed are women’s and fit true to size; breathable mesh upper keeps your feet cool in warmer temperatures Traction: oil- and Slip-Resistant, Non-Marking, siped, rubber outsoles for improved traction that meet or exceed ASTM f1677-96 and F2913 SATRA standards Support & comfort: Features keen.Regen technology; a lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam making safety footwear more comfortable; includes removable PU insole Underfoot protection: Electrical Hazard (eh)-rated footwear provides a secondary source of protection incase accidentally coming into contact with live Electrical circuits