Neoprene socks provide a perfect solution to racing or training in cold open water. They provide a flexible layer of insulation for your feet and are thick enough to keep out small debris. These swim socks are engineered to maintain warmth in your feet. Don't fret about constriction—they bend with the shape of your foot, and you'll be thankful for the investment during chillier swims. They're like much less bulky water shoes that also keep your toes toasty.