Best One-Piece Swimsuits for Girls of 2025

The JIMJOOS Girls Swimsuit features a non see-through design, ensuring your child feels modest and secure while swimming. It is made from a strong material blend of 82% nylon and 18% spandex, which guarantees durability and comfort for energetic play. Available in multiple sizes, you can easily find the perfect fit for your young swimmer. The full coverage design allows for unrestricted movement, enabling your child to swim and enjoy water activities with confidence.

The Lilo & Stitch Swimsuit is a charming one-piece costume featuring a delightful design of Stitch on the front. With comfortable shoulder straps, it ensures that you can enjoy swimming without any discomfort. Available in lilac and green, you can choose the colour that best suits your style. This swimsuit makes an ideal gift for any young Disney fan, perfect for birthdays or Christmas. Made with high-quality materials, it offers excellent stretch and comfort, allowing for carefree playtime at the pool or beach.

The Speedo HyperBoom Swimsuit is designed for young swimmers who need comfort and flexibility during longer swim sessions. Its muscleback design allows for a full range of motion, ensuring you can swim freely. The fabric offers higher chlorine resistance than standard swimwear, so it will maintain its shape and fit like new for longer. Additionally, the stretch fabric aids in shape retention, providing a comfortable experience without feeling restricted. Enjoy your time in the water with this high-performance swimsuit.

The Swimbubs Warm Suit is designed to keep your little one comfortable and protected while swimming. The soft fleece lining insulates your baby, allowing for longer playtime in the pool. With its polyester outer layer, this wetsuit is perfect for toddlers with sensitive skin, as it helps maintain barrier creams in the water. The UPF 50+ sun protection is ideal for beach outings, shielding your child from harmful sun rays while keeping sand at bay. Plus, the zip fastening on the front makes changing your infant quick and hassle-free.

The Geagodelia Baby Swimwear is an ideal choice for your little girl during the summer. Made from polyester, this swimsuit offers excellent sun protection while being lightweight and stretchy, ensuring comfort as she plays. The short sleeves and zip-up design keep her warm and covered, perfect for outdoor activities. With its charming floral pattern, it’s not only functional but also stylish, making it a delightful addition to her swimwear collection.

The Arena Dynamo Swimsuit is designed for comfort and durability, making it perfect for young swimmers like you. Its MaxFit ECO-FABRIC ensures a snug fit while allowing for easy movement in the water. You'll appreciate the swimsuit's quick-drying properties, which are ideal for both pool and beach outings. With UPF 50+ UV protection, your skin will be safeguarded from harmful sun rays, letting you enjoy your swim with peace of mind.

The Ewbob Girls Swimsuit is crafted from high-quality materials, featuring 85% polyester and 15% elastane, ensuring durability and softness for flexible movement. It fits like a second skin, providing maximum comfort with wide straps and an ergonomic back cut for optimal support. Made from quick-drying, lightweight fabric, this swimsuit allows your child to transition from water to land effortlessly. Additionally, it offers SPF 30+ UV protection, making it perfect for sunny days at the beach or pool, safeguarding your little one while they enjoy their aquatic adventures.

The Warm In One Wetsuit by Splash About is designed to keep your baby warm and cosy while enjoying water activities. Its fleece lining ensures comfort in chilly conditions, whether in a pool or at the beach. With UPF 50 protection, it shields your little one from harmful sun rays and wind chill when out of the water. The wetsuit is made from highly durable yet soft materials, making it suitable for all-day wear, especially for those with sensitive skin or eczema.

The AmzBarley Mermaid Swimsuit is designed for young girls, offering exceptional UPF50+ UV sun protection. Made from a blend of 84% polyester and 16% spandex, this swimsuit provides a silky touch and is extremely quick drying, ensuring comfort both in and out of the water. With its durable fabric, you can rest assured that it retains its shape and doesn't fade after swimming. The long sleeves and high collar offer optimal sun protection, making it ideal for beach outings, swimming training, and water sports.

The Splash About Thermaswim Swimsuit is designed to keep your child warm during swimming sessions. Its thermal all-in-one design ensures they stay comfortable in cooler water. The super-soft brushed fleece inner adds an extra layer of warmth and comfort, making it perfect for long hours in the pool. You can use it as a swimsuit or wear it as a base layer under wetsuits, providing versatility for different swimming activities. The full-length zip makes dressing quick and easy, helping you get your little one ready in no time.