BAOHULU Girls ' 3-Piece Swim Set Lovely Scale Tail Bikini Swimwear 100-150 WASHING TIPS: MACHINE WASH cold Material: nylon+ spandex+ polyester; Set include:3pcs Swimmable Mermaid Swimsuit Set (1pc TOP +1pc UNDERWEAR +1pc MERMAID TAIL)) Feature: HOLLOW OUT design at the bottom of the mermaid tail,which your girls can walk around. Perfect for swimming in the pool or hanging at the beach, summer surfing, bathing,cosplay,theme party and so on. Please refer to the product SIZE CHART on the left instead of generic Amazon size chart for this product to make a right fit for your girls