Mermaid Tails for Girls, Kids, and Adults

The Sun Tails monofin and mermaid tail are designed for swimming, providing great propulsion, control, comfort, and safety. Our mermaid monofin is virtually indestructible, and the mer-shield coating protects the fabric of the mermaid tail against wear and holes while you swim. We offer a 1-year warranty, providing free replacements for rips, tears, and breaks in your mermaid tail or monofin.

Our beautiful and realistic mermaid tails are made of premium swimsuit fabric with 4-way stretch, available in sizes for kids, girls, women, and adults. Swim like a real mermaid with grace and speed, enjoying hours of fun in the pool, lake, or ocean.

Complete your mermaid transformation by adding a matching mermaid scale swimsuit, made from the same premium fabric as our mermaid tails. The top features a strap around the neck and back for great support and a custom fit, while the hipster-style swim bottoms are beautiful, comfortable, and tugless.

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 the soft fabric cushions your feet. Our specially engineered fin is super strong and won't break, available in a rainbow of ten fun colors to match your mermaid tails.

Refer to the size chart in the product photos. Our mermaid tails are stretchy, so the sizing is forgiving. For child tail sizes M, L, and XL, you will receive the keiki (child) monofin, while the tail sizes JS, JM, JL come with the nunui (teen/adult) monofin. The keiki monofin fits US child shoe size 10 to a US women's size 7, designed for children age 6 to 12, while the nunui monofin fits shoe size US women's 6 to 12, designed for age 12 to adult.

After swimming, rinse in cold water and lay flat to dry. The mermaid tails are machine washable, wash in cold water and tumble dry on low. Our premium, fade-proof fabrics are designed to last, with vibrant, realistic scale patterns.

Customers have rated our mermaid tails and accessories highly, with an average of 4.6 out of 5 stars across over 1,000 reviews. Explore our other mermaid-themed products, including toddler mermaid tails, mermaid bikini swimsuits, and adult XL and XXL mermaid tails and monofin sets.

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