Lighter weight than our original Flint Mid, this waterproof work boot offers dependable traction and comfort with a durable, EH-rated rubber outsole with a siped tread to quickly disperse liquids for increased traction on slick, wet surfaces. Our innovative KEEN.ReGEN cushioning midsole provides sustained, lightweight underfoot support no matter how many miles you clock.. . . . . Left and right asymmetrical KEEN.PROTECT soft toes help safeguard against minor impact, but not reinforced with a secondary crush resistance. KEEN.DRY waterproof, breathable membrane. Electrical hazard (EH) or Electric Shock Resistant (ESR) footwear provides a secondary source of protection incase accidentally coming into contact with live electrical circuits. Reflective webbing for additional safety and visibility. External Stability Shank (ESS) for midfoot support. Shellback heel support. Secure fit lace capture system. Cleansport NXT Technology for natural odor protection*. Waterproof Leather/Mesh Upper. Oil- and slip-resistant non-marking rubber outsole. KEEN.ReGEN: A lightweight, compression-resisting midsole providing 50% more energy return than standard EVA foam. Mesh & moisture-wicking textile lining. Removable metatomical PU footbed. Weight: 20.8 oz / 589.7 g. Calf Circumference: 10.0 in / 25.4 cm. Safety Rating:. Meets ASTM F1677-96 MARK II Non-Slip Testing Standards. Meets ASTM F2913-19 SATRA Non-Slip Testing Standards. Meets ASTM F2892-18 EH standards. Toe Type: Soft Toe. Duty Type: Light Duty. Certified Slip Resistant (Mark II). Imported.