Best Mermaid One-Piece Swimsuits for Girls of 2025

The Flintronic Mermaid Swimsuit is crafted from a blend of 85% polyester and 15% spandex, ensuring a soft and comfortable fit for your little one. The elastic fabric adapts to your child's growth, preventing any streaks on delicate skin. With its functional design, the swimsuit features durable edges and elastic straps for a secure fit, making it perfect for swimming lessons or beach outings. The swimsuit's unique mermaid scale design and backless style add charm and freshness for summer wear, allowing your child to stand out and feel confident.

The Disney Ariel Swimsuit is a delightful choice for beach days. Its vibrant pink colour and charming print of Princess Ariel and Flounder make it a stylish option your little one will adore. The zip fastening on the back allows for easy dressing, so you won't struggle when it's time to change. With short sleeves and frills, the design adds a fun touch while ensuring comfort. This swimsuit is perfect for any Disney fan, making swim time even more magical.

The AmzBarley Mermaid Swimsuit is an adorable choice for your little girl's swimming adventures. Made from soft, skin-friendly polyester, it ensures comfort against your child's skin. Its quick-drying and breathable fabric is perfect for both pool parties and beach holidays, allowing for carefree fun. Additionally, the chlorine and salt-resistant design guarantees long-lasting wear, so your child can enjoy the water without worry. With stylish spaghetti shoulder straps and a charming ruffle skirt, this one-piece swimsuit is sure to make your princess feel special.

The AmzBarley Mermaid Swimsuit is designed for comfort and protection during water activities. Made from a blend of 84% polyester and 16% spandex, it offers UPF50+ UV sun protection, ensuring your skin is shielded from harmful rays. The silky touch and quick-drying fabric keep you comfortable whether you're at the beach or pool. Additionally, the long sleeves and high collar provide extra sun protection, while the double-stitched seams enhance durability, making it a reliable choice for all your summer adventures.

The Gifts Treat Mermaid Swimsuit is a delightful choice for your nine-year-old, ensuring a snug fit when you refer to the size chart before ordering. Its enchanting mermaid scale patterns add a magical touch to pool play, making swimming more exciting. The swimsuit features a lovely pink fade print that is both simple and attractive, perfect for beach outings or swim lessons. Made from 84% recycled polyester and 16% elastane, it is machine washable, offering convenience for busy parents.

The M MUNCASO Mermaid Swimsuit is crafted from high-quality materials, featuring 84% Nylon and 16% Spandex, ensuring a comfortable and breathable fit for your child. With SPF 50+ protection, it keeps little ones safe from the sun's harmful rays. The attractive mermaid design includes vibrant fish scale prints and a stylish double-layer wave skirt, making it perfect for pool parties or beach days. The exquisite workmanship guarantees durability and a soft touch, ideal for sensitive skin, allowing your girl to enjoy water activities with confidence.

The BOVOSHA Mermaid Swimsuit is designed for comfort and fun. Made from 85% polyester and 15% elastane, it is soft, lightweight, and dries quickly, making it perfect for hot days. The high neck offers added coverage, while the front zipper ensures easy dressing, preventing any pinching of your child's skin. With its vibrant mermaid scales, this swimsuit transforms your little girl into a mermaid princess, ideal for swimming or surfing adventures.

The Jurebecia Mermaid Swimsuit is designed for comfort and ease. Its elasticity ensures a perfect fit, allowing your child to move freely while swimming. Made from ultra-soft, skin-friendly material, the swimsuit is quick-drying and free from pilling or itchiness, making for a pleasant wearing experience. The one-piece design features long sleeves and a convenient front zipper, making it simple for your little one to put on and take off. Plus, the vibrant 3D Mermaid print adds a splash of colour, perfect for summer fun by the pool or beach.

The Jurebecia Mermaid Swimsuit is a delightful one-piece costume designed for girls aged 7-8 years. Its vibrant cartoon patterns bring a joyful summer vibe, perfect for beach outings. The ultra-soft fabric ensures comfort against sensitive skin, making it ideal for all-day wear. With adjustable shoulder straps, you can easily dress your child, ensuring a secure fit. This swimsuit is not only stylish but also practical, allowing for enjoyable swim lessons and beach fun during the holidays.

The BOVOSHA Mermaid Swimsuit is crafted from a blend of 85% polyester and 15% elastane, ensuring a soft and comfortable fit for your child. Its thoughtful design features a crewneck and front zipper, making it easy for kids to dress themselves. This swimsuit also offers UPF 50+ sun protection, safeguarding your child's skin from harmful UV rays while they swim. With its enchanting mermaid style, your little one will feel like a true sea princess, receiving compliments wherever she goes.