Mermaid Tail and Monofin for Swimming, Adult Sizes

Sun Tails' Swimmable Mermaid Tails: Become a Magical Mermaid

Powered by an unbeatable mermaid monofin, Sun Tails' swimmable mermaid tails are soft, safe, and realistic. These premium, fade-proof fabrics have been custom-designed with vibrant, realistic scale patterns, allowing you to become a magical mermaid.

Matching Mermaid Swimming Suits

Complete your mermaid metamorphosis by adding a mermaid scale swimsuit, designed to perfectly match Sun Tails' mermaid tails. Made from the same premium swimsuit fabric, the top features a strap around the neck and back for great support and a custom fit. The hipster-style swim bottoms are beautiful, comfortable, and tugless, available in toddler, kid, teen, and adult sizes.

Better Monofin, Better Mermaid

The Sun Tail Mermaid monofin has been engineered to move you efficiently through the water using the dolphin kick. An adjustable Velcro strap holds your feet securely in place, providing comfort, stability, and control in the water, making fancy mermaid turns and flips much easier. The foot pocket separates your feet to prevent ankle rubbing, and soft fabric cushions your feet. The specially engineered fin is super strong and won't break, available in a rainbow of ten fun colors to match your mermaid tails.

Sizing

Sun Tails' mermaid tails are stretchy, with forgiving sizing. For child tail sizes M, L, and XL, you'll receive the keiki (child) monofin, while for the tail sizes JS, JM, JL, you'll receive the nunui (teen/adult) monofin. The soft, stretchy foot pocket self-adjusts to fit a wide range of foot sizes, with the keiki monofin fitting US child shoe size 10 to a US women's size 7, and the nunui monofin fitting US women's size 6 to 12.

Mermaid Tail Skins (Child Sizes), Toddler Mermaid Tails, Mermaid Bikini Swimsuits, Adult XL and XXL Mermaid Tails and Monofin Sets, and Monofin Swim Flippers are also available, all featuring the same high-quality, swimmable, fade-resistant, and machine-washable materials.

With an average customer rating of 4.5 out of 5 stars across 1,070 reviews, Sun Tails' mermaid products are a must-have for anyone seeking to embrace their inner mermaid and experience the joy of swimming with a magical tail.

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