The Keen Flint II safety-toe workboot is built to fit a woman’s foot and features their KEEN.ReGEN cushioning midsole, which offers 50% energy return with every step. This rugged workboot has left and right asymmetrical steel toe units provides a roomier toe box for maximum comfort and an unobtrusive fit. These boots meet or exceed ASTM F2412 and F2413 /75 C/75 EH standards. The Flint II also has a waterproof, breathable membrane liner that lets vapor out without letting water in. For traction, the soles are oil- and slip-resistant, and non-marking plus they meet or exceed ASTM F1677 MARK II and ASTM F2913 SATRA Non-Slip Testing Standards.