Smooth fabrics like socks that keep best wear-feeling even in water.Closed way:sleeveFunction: shock absorption,anti-skid,wear-resistant,quick-drying, sweat absorption, light weightApplicable people: both men and womenShoe size:35,36,37,38,39,40,41,42,43,44,45,46Product role: can be used for beach,snorkeling,river,surfing,etc.Product advantages: lighter than shoes, better protection than socks,cost- effective outdoor equipmentFine pressure line, the appearance of the texture, the even and flat line does not rub the skin, no abrupt touch.It is integrally formed and fits evenly with the foot. It has no drag and motion during exercise and improves the efficiency of exercise.VARIOUS SIZE AVAILABLE -- fit different feet,little kids, big kids,men,women are available.