Snaps at the bottom closure???Set includes??: 1pcs mermaid skin (No Monofin included), material is polyester and spandex, color doesn’t fade, dress is stretchable, elastic and easy to be dry.???VIVID Mermaid??: The fabric swimming suit made to be real mermaid fish scales, it looks like a real mermaid fish tail, lovely mermaid tail costume swimwear for both adult (adult size available) and children (kid’s size available), adult can order one size up.???Mermaid option??: At the bottom of the mermaid can open and close with snaps, walking and closing for fin. Mermaid dress is designed to be snug to follow the concept of real mermaid. Go and have funs in the summer, enjoy the outdoors, perfect for mother daughter set.???Good for ??: Great choice for beach holiday, pool party, swimming, bathing, performance, cosplay, theme party and bat mitzvah.???Service??: GALLDEALS GROUP is only seller for GALLDEALS BRAND PRODUCT, please pay attention to the seller when you purchase it. These dress has no monofin included, you can order the mermaid monofin individually,if you have doubt for the size, please check description or contact us. Please ignore size on tags and Amazon size chart, if big structure please order one size up.