SOFT TOE: Left and right asymmetrical KEEN.PROTECT soft toe caps help safeguard against minor impact that meets or exceeds ASTM F2892 EH standards, but are not reinforced with a secondary crush resistance material 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 Flint 2 Mid Soft Toe work boots have a mesh liner that integrates with the waterproof membrane FIT & CONSTRUCTION: Built on a specific women’s foot form that is wider than the industry norm for improved fit & comfort; The sizes listed are women’s and fit true to size; Made with reflective webbing for additional safety and visibility 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; Lugged tread outsoles wider channels help provide superior traction SUPPORT & 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 probiotic