The Avenger Safety Footwear 7573 safety boot meets ASTM standards for Electrical Hazard (EH) protection, provides exceptional, flexible durability thanks to its Flex-Welt ConstructionItem # 514079600 g Thinsulate™ insulationApprox. 8” heel heightCarbon Nanofiber Composite Safety Toe CapComposite Safety Toe CapElectrical Hazard ProtectionFlex-Welt ConstructionFull-grain leather upperLace entry with metal hooksLogo detailsMeets ASTM standards for Electrical Hazard (EH) protectionMesh textile liningPadded tongue and collarPuncture resistantRemovable, Dual Density Polyurethane insoleThinsulate™Waterproof membraneStyle Number: 7573