Give your feet all-day comfort with the Muck Boot Chore Cool Mid Boot. The 4mm neoprene bootie with four-way stretch nylon is 100% waterproof, lightweight, and flexible, while the lower portion of the boot is triple-reinforced in the toe area and quadruple-reinforced in the heel area. XpressCool lining material pulls moisture away from your feet and spreads it across the boot, keeping you feeling cool and dry even during long hours of wear. A steel shank provides additional arch support, and an etc sockliner reduces friction and heat buildup. Spandura is added to the exterior of the neoprene for added protection against wear and abrasion. The Vibram outsole provides improved durability and performance, allowing your boots to grip and stabilize you, even on slippery surfaces. Imported.