Mermaid Swim Tail by ShimmertailAS SEEN ON TV 89% polyester/11% spandex AS SEEN ON TV! Shimmertail mermaid tails are swimmable mermaid costumes Please check measurements in the sizing information below to buy the right size Shimmertail A Shimmertail mermaid swim fin with food straps is INCLUDED! Includes an opening at the bottom of the tail for walking and/or taking on and off your mermaid swim fin PLEASE NOTE: All sales are final on products sold at clearance or discounts greater than 25% off the MSRP on each item.