TOOSBUY Childrens Kids Wave Water Shoes Pool Beach Aqua Socks(Toddler/Little Kid) Material: imported sandwich mesh fabric, the bottom is soft TPR (shock proof) Imported Lightweight & comfortable Slip on style allows for easy wear & removal Foot length: Size 4-5=12cm, Size 6-7=13-14cm,Size 8-9=15-16cm,Size 10-11=16.5-18cm. Great for swimming pools, beaches, lakes & rivers! Available in multiple sizes