The Keen® Utility Sparta II ESD shoes are slip-resistant, help reduce static electricity, and provide superior shock absorption than traditional EVA midsoles. Electro static dissipative (ESD) or Super-Static Dissipative (SD+) footwear is constructed to reduce excess static electricity.Oil and slip-resistant non-marking rubber outsole meets ASTM F1677-96 MARK II and ASTM F2913-17 SATRA Non-Slip Testing Standards.Mesh and synthetic upper with mesh and moisture-wicking textile lining and removable metatomical polyurethane footbed.Left and right asymmetrical aluminum toes Meets ASTM F2412-18 and F2413-18 M I/75 C/75 SD 35 standards.KEEN.ReGen midsole is a lightweight, compression-resisting midsole providing 50% more energy return than standard eva foam.Lace-up closure with pull-tab for easy on/off.Imported. Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size.Weight of footwear is based on a single item, not a pair.Measurements: Weight: 1 lb View Zappos.com Glossary of TermsFind something wrong in this description? Help us fix it! Report An Error