COMPOSITE TOE: Left and right asymmetrical, non-metallic carbon-fiber toes, a composite material, offer an unobtrusive fit and are 15% lighter than steel; The Vista Energy line meets or exceeds ASTM F2412 and F2413 M I/75 and C/75 Standards TRACTION: Slip-resistant and oil-resistant VersaTREAD rubber outsole for reliable indoor/outdoor all-surface grip; Non-marking, rubber outsole traction that meets or exceeds ASTM F1677-96 and F2913 SATRA standards WATER RESISTANT: Moisture-wicking textile lining transports moisture away from feet; Water-resistant textile provides a barrier against liquid absorption; Non-mutilating uppers reduce the chance of marking surfaces SUPPORT: These shoes are made with KONNECTFIT heel-capture system for a locked-in feel, and 100% non-metallic construction for passing through metal detectors; A nylon shank used for midfoot support, and torsion stability COMFORT: Made with KEEN.ReGEN a lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam for lasting support and comfort