Composite Toe left and right asymmetrical nonmetallic composite carbonfiber safety toes offer unobtrusive fit and are 15 lighter than steel toes and meet or exceed ASTM F2412 and F2413 EH standards Fit DESIGN built on a specific womens last form that is wider than the Industry Norm for improved fit and comfort sizes listed are womens and fit true to size includes a removable DualDensity polyaer PU insole with Aerated pillowtop cushioning Waterproof keenDry is a waterproof breathable membrane liner that lets vapor out without letting water in for keeping your feet dry and comfortable this boot does have a liner that integrates with the waterproof membrane Traction oil and SlipResistant NonMarking siped rubber outsoles for improved traction that meet or exceed ASTM f167796 and F2913 SATRA standards Underfoot protection Electrical Hazard ehrated footwear provides a secondary source of protection incase accidentally coming into contact with live Electrical circuits