Closed way: sleeveHelp surface material: LYCRAOutsole material: wear-resistant anti-slip rubberFunction: non-slip, wear-resistant, breathable, light, packagedApplicable people: both men and womenshoe size:36-37 , 38-39 , 40-41 , 42-43 , 44-45Product role: can be used for beach, snorkeling, river, surfing, etc.Product advantages: lighter than shoes, better protection than socks, cost-effective outdoor equipmentThe upper is made of Lycra cotton air fabric for breathable comfort and non-slip skin socks.Sewing, hand-made ingenuity, no glue, no fading at the end, no ball and no lint.Shoe ring, easy to wear, easy to dry, with a stylish bag and design, no longer worry about falling shoes.Soft rubber non-slip bottom, light and comfortable, breathable, 360° free to twist without deformation, no glue.If you would have any questions, please feel free to contact us.