STEEL TOE: Left and right asymmetrical steel toe design provides a roomier toe box for maximum comfort and unobtrusive fit, These Flint 2 mid work boots meet or exceeds ASTM F2412 and F2413 I/75 C/75 EH Standards WATERPROOF: KEEN.DRY is a waterproof, breathable membrane that lets vapor out without letting water in for keeping your feet dry and comfortable; These boots have a liner that integrates with the waterproof membrane 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 SUPPORT & COMFORT: Features KEEN.ReGEN technology, a lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam making safety footwear more comfortable VISIBILITY & PROTECTION: Reflective webbing is added near heel counter and locking metal lace hooks help keep laces tight for increased ankle support; Electrical hazard (EH)-rated to provide secondary protection from electrical circuits