Gear up with comfort and protection wearing Speed-Flex Trekker. This slip-resistant laced pull-on features a ballistic nylon and synthetic upper with a non-metallic carbon nano safety toe, an Air-Cooled Memory Foam insole, and Goodyear Rubber Outsole Carbon nano non-metallic safety toe front meets ASTM F2413 impact and compression standards Electrical Hazard (EH) safe design tested ASTM-F2413 Slip-resistant under wet & dry conditions (ASTM F3445) Skechers Air-Cooled Memory Foam cushioned comfort insole ...