About this item COMPOSITE TOE: Left and right asymmetrical, non-metallic carbon-fiber toes, a composite material, offer an unobtrusive fit and are 15% lighter than steel; These work boots meet or exceed ASTM F2412 and F2413 M I/75 and C/75 Standards WATERPROOF: KEEN.DRY is a waterproof, breathable membrane liner that lets vapor out without letting water in for keeping your feet dry and comfortable; The Red Hook Mid work boots have a mesh liner that integrates with the waterproof membrane TRACTION: Oil- and slip-resistant, non-marking, rubber outsoles are used for improved traction that meet or exceed ASTM F1677 MARK II and ASTM F2913 SATRA Non-Slip Testing Standards; Non-mutilating uppers reduce the chance of marking surfaces SAFETY & SUPPORT: These boots are made with TecTuff bonded coating with more abrasion resistance than leather, 100% non-metallic construction for passing through metal detectors, and reflective webbing for additional safety and visibility COMFORT: Made with KEEN.ReGEN a lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam for lasting support and comfort; CleansportNXT provides natural odor protection using probiotics