Girls Mermaid Swimsuit Costume with Tail and Monofin - 3 Piece Set

What's Included

• Halter Top Bikini (stretch material)
• Pants
• Swimmable Tail (zip on the side)
• Black Monofin

Ombré gradient transitions from coral-peach at the bust through pink and purple at the waist to turquoise blue at the tail flukes. Scale-textured print covers all three pieces, creating a cohesive ocean-creature look. Decorative striped fins in pink, purple, orange and blue accent the shoulders and hips. The tail fabric stretches to accommodate leg movement while holding the mermaid silhouette underwater.

Key Features

• Monofin insert slides into reinforced pocket at tail flukes – provides swimming propulsion while maintaining anti-breaking design
• Halter-tie bikini top adjusts for comfortable fit – back tie closure ensures secure wear during active play
• Layered decorative fins at shoulders and hips add theatrical flair without restricting movement

Perfect For

Pool Parties & Beach Days: Whether it's a mermaid-themed birthday celebration, a summer pool party with fancy dress elements, or regular beach trips where she wants to stand out, this functional tail lets her actually swim rather than just pose for photos.

Underwater Photography & Costume Swim Events: The gradient color palette photographs beautifully underwater – coral-to-turquoise transition creates sunset-ocean effects in pool portraits. Suitable for costume swim meets, underwater themed photoshoots, or aquarium dress-up days.

Fairy Tale Dress-Up & Ocean-Themed Celebrations: Works for Book Week ocean storybook characters, Halloween costumes with a water-safe twist, or year-round mermaid imaginative play. The functional design means it earns its place as both costume and regular swimwear.

Frequently Asked Questions

Love this look? Explore more swimwear or browse our full range of mermaid costumes.