Designed with KEEN.ReGEN’s proven midsole cushioning, offering 50% energy return with every step, a breathable mesh upper, carbon-fiber toes, and the KonnectFit heel capture system, Keen® Men's Vista Energy low work sneaker isn’t only the comfort you’ve been looking for, it’s the performance you need. Water-resistant Mesh and Synthetic upper Non-mutilating upper reduces the chance of marking or scratching surfaces KEEN.ReGEN lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam Mesh liner provides breathability to help keep feet cool in warm environments Removable metatomical PU footbed Left and right asymmetrical non-metallic carbon-fiber toes offer unobtrusive fit and are 15% lighter than steel Electrical hazard (EH) rated - providing a secondary source of protection in case of accidental contact with live electrical circuits 100% non-metallic construction for easily passing through metal detectors in highly-secured areas Nylon shank for midfoot support KONNECTFIT heel-capture system for a locked-in feel Secure fit lace capture system Meets ASTM F1677-96 MARK II Non-Slip Testing Standards Meets ASTM F2913-17 SATRA Non-Slip Testing Standards Certified Slip Resistant (Mark II) Oil- and slip-resistant non-marking Rubber outsole Product Features: Outsole:Oil- and Slip-resistant, non-marking Rubber traction Upper:Water-resistant Mesh and Synthetic Height:4.5" Lining:Moisture-wicking Textile Toe Protection:Carbon-Fiber Midsole:KEEN.ReGEN lightweight, compression-resisting Support (shank):Nylon Footbed:Metatomical Polyurethane, removable Slip Resistant:Meets ASTM F1677-96 MARK II Non-Slip Testing Standards; Meets ASTM F2913-17 SATRA Non-Slip Testing Standards Weight:17.1 oz. (484.8 g) Keen Men's Vista Energy Carbon-Fiber Toe Work Shoe