FeaturesAnti-slipFeaturing a non-slip silicone sole, you can walk safely on the wet surface while preventing scratches from sharp objects. The toe and heel are protected from injury with reinforced sparkle. Adjustable nylon straps and pull tabs make it easier to put on and take off and keep sand out for breathable comfort.3MM Premium MaterialSuper stretchy 3MM neoprene double lined with elastic nylon fabric, protects feet from hurting by sunburn,jellyfish, and coral.It also prevents pilling and ensures breathable comfort.Delicate StitchinFlatlock stitching keeps sand out, and the quick-drying material of the sock fabric provides excellent insulation to keep your feet warm in cold water.Can Be Used With Snorkeling FinsDive socks are not only lightweight and easy to carry, but can also be used with snorkeling fins.The neoprene material allows for quick drying,minimizing the risk of bacteria growth and foul odor.Size ChartThe socks come in a variety of sizes to meet the needs of most people.Sock length is the straight-line distance from the toe to the heel on the side of the sock.Sock height is from the heel of the sock to the height of the sock tube.