The Keen San Antonio Boot offers the comfort and feel of a sneaker with the protection of a work boot. The boot features a crafted lightweight synthetic upper, Cleansport NXT lining for natural odor protection, dual-density compression molded EVA midsole and a removable custom PU footbed for additional comfort. The left and right asymmetrical aluminum toe caps are designed to provide a roomy fit, and the oil- and slip-resistant non-rubber outsole offers good surface area contact and meets ASTM F2412-11 and F2413-11 M I/75 C/75 EH safety standards. These boots are available in black/silver or gargoyle/blue opal colors.