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

What's Included

• Halter-style bikini top with scale texture and gradient print – tie closures at neck and back
• Matching bikini bottom with elastic waistband and ombré scale pattern
• Full-length swimmable mermaid tail with side zip closure and flared flukes
• Black monofin insert – slides into reinforced tail pocket for swimming propulsion

The Girls Mermaid Swimsuit Costume is a functional three-piece set designed for actual water play, not just display. The halter bikini top, matching bottoms and zip-up tail work together as genuine swimwear.

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

• Functional swimwear – chlorine-resistant stretch polyester/spandex blend suitable for pools and saltwater
• Side zipper on tail runs vertically for easy on/off without removing the monofin
• 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.

How to Wear It

Wear the bikini set as regular swimwear, then add the tail when it's time for mermaid mode. Slide the monofin into the tail pocket before zipping up – the fin stays secure during swimming. Pair with waterproof temporary tattoos or shell hair clips for extra ocean-princess effect.

Frequently Asked Questions

Care: Hand wash cold, hang dry, rinse after pool use.

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