Best Speedo One-Piece Swimsuits for Girls of 2025

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One-Piece Swimsuits by Speedo are a stylish and practical choice for girls looking to make a statement at the beach or pool. These swimsuits feature a sleek design and are made from high-quality materials that provide both comfort and durability. With a range of vibrant colours and fun patterns to choose from, girls can express their individual style while enjoying a day in the water. The Speedo brand is well-known for its expertise in swimwear, making these one-piece swimsuits a reliable choice for any young swimmer.
At a Glance: Our Top Picks
Top 10 Speedo One-Piece Swimsuits for Girls
Speedo Junior Girl's HyperBoom Muscleback Swimsuit
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.
Speedo Junior Girl's Hyperboom Medalist Swimsuit
The Speedo Hyperboom Swimsuit is designed with a Medalist cut, allowing for excellent shoulder movement and flexibility, perfect for your training sessions. Its higher chlorine resistance ensures that the fabric maintains its shape and fit, even after multiple uses. You will appreciate the shape retention feature, which allows the swimsuit to stretch without feeling restrictive, giving you freedom of movement in the water. Additionally, the front lining provides extra comfort and modesty, especially with the bright colours of the swimsuit.
Speedo Girls Hyperboom One Piece Swimsuit
The Speedo Hyperboom Swimsuit is designed for young swimmers who need flexibility and comfort during their training. The medalist design promotes better shoulder movement, allowing you to swim freely. With its higher chlorine resistance, this swimsuit maintains its fit and appearance longer than standard swimwear. The shape retention feature ensures that the fabric stretches with you, so you won’t feel restricted while swimming. Additionally, the front lining provides extra comfort and modesty, especially with bright colours.
Speedo Kids Chima Azure Blue Swimsuit
The Speedo Chima Swimsuit is designed for children aged 4-6 years and features a vibrant design of Chima the African Penguin. This one-piece swimsuit includes foam inserts for buoyancy, helping your child feel more secure in the water. It is essential to supervise children when they use this product, ensuring their safety during swim time. Additionally, it meets Australian and European safety standards, giving you peace of mind while your little ones enjoy their aquatic adventures.
Speedo Kids Digital Print One Piece Swimsuit
The Speedo Kids Swimsuit offers a vibrant digital print that enhances colour and definition, making it a stylish choice for young swimmers. Its 100% chlorine resistance ensures long-lasting performance, allowing you to enjoy countless swims without worrying about wear and tear. You'll appreciate how quickly it dries after your swim, making it convenient for changing back into everyday clothes. Additionally, one of the yarns is made from 100% post-consumer waste, such as recycled plastic bottles, helping you contribute to environmental sustainability.
Speedo Girls Digital Allover Leaderback Costume
The Speedo Leaderback Costume is an excellent choice for young swimmers. As a one-piece swimsuit, it provides full coverage, allowing you to swim confidently without worrying about adjustments. Made from synthetic material, it offers durability and a comfortable fit, making it ideal for regular use. The vibrant colour options, including black and watermelon, add a fun touch that young girls will enjoy. This swimsuit not only looks great but also allows for ease of movement, enhancing your swimming experience.
Speedo Junior Girl's Splashback Swimsuit
The Speedo Splashback Swimsuit offers excellent freedom of movement in the water, thanks to its unique splashback design that keeps straps away from your shoulders. It features enhanced chlorine resistance, meaning it will maintain its fit and appearance for longer periods, making it perfect for regular swimming lessons. You’ll also appreciate the shape retention, as the fabric stretches comfortably without feeling restrictive. Additionally, the front lining adds comfort and modesty, allowing you to swim confidently in bright colours.
Speedo Infant Girl's Blue Swimsuit
The Speedo Girl's Swimsuit is designed for comfort and freedom of movement, thanks to its racerback style that keeps the straps securely in place. Its higher chlorine resistance ensures the fabric maintains its quality and fit for longer, allowing you to enjoy more swims without worrying about wear and tear. The shape retention feature means you can swim freely without feeling restricted, and the front lining adds an extra layer of comfort and modesty, especially when wearing bright colours. This swimsuit is perfect for your little one’s aquatic adventures.
Speedo Infant Girl's Crossback Swimsuit
The Speedo Crossback Swimsuit is designed for comfort and performance. Its crossback design ensures the straps stay in place, allowing you freedom of movement while swimming. With higher chlorine resistance than standard fabrics, this swimsuit maintains its fit longer, so you can enjoy more swims without worry. The stretchy EnduraFlex fabric, made from recycled nylon yarns, gives you excellent shape retention, enabling a comfortable and unrestricted experience in the water. Lastly, the front lining provides added comfort and modesty, particularly with its bright colours.
Speedo Kids Black/Bondi Splashback Swimsuit
The Speedo Kids Splashback Swimsuit is a great choice for young swimmers. This one-piece design provides excellent coverage, allowing you to feel confident and comfortable in the water. Its black and Bondi colour combination is stylish and appealing to kids. The swimsuit is specifically made for girls, ensuring a perfect fit for their body shape. With its durable material, it is designed to withstand regular use, making it ideal for pool days or swim lessons.
During our Speedo one-piece swimsuit for girls research, we found 191 Speedo one-piece swimsuit for girls products and shortlisted 10 quality products. We collected and analyzed 8,688 customer reviews through our big data system to write the Speedo one-piece swimsuits for girls list. We found that most customers choose Speedo one-piece swimsuits for girls with an average price of £17.85.
The Speedo one-piece swimsuits for girls are available for purchase. The top 10 picks range in price from a low of £6.00 to a high of £24.00, find the one that fits your budget.

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