Best Lightweight One-Piece Swimsuits for Girls of 2025

John Zimmer Avatar
John Zimmer
Last Updated: 30 Jan 2025

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These lightweight one-piece swimsuits are the perfect choice for girls who want to make a splash at the beach or pool. Made from high-quality materials, these swimsuits offer a comfortable and secure fit, allowing girls to move freely in the water. With a range of vibrant colours and stylish designs, these swimsuits are not only practical but also fashionable. Whether swimming, playing beach volleyball, or simply relaxing in the sun, these lightweight one-piece swimsuits are a must-have for every girl this summer.

At a Glance: Our Top Picks

Aisyee Girls One Piece Swimming Costume Cover #TOP 1
Aisyee Girls One Piece Swimming Costume
ftb score rating icon 9.8
Aisyee Adjustable One Piece Girls Swimsuit Cover #TOP 2
Aisyee Adjustable One Piece Girls Swimsuit
ftb score rating icon 9.7
BIQIQI Mermaid One Piece Swimsuit for Kids Cover #TOP 3
BIQIQI Mermaid One Piece Swimsuit for Kids
ftb score rating icon 9.5

Top 9 Lightweight One-Piece Swimsuits for Girls

#TOP 1

Aisyee Girls One Piece Swimming Costume

Palm Tree Floral
13-14 Years
Aisyee Girls One Piece Swimming Costume Cover
Aisyee Big Girls Swimming Costume Kids One Piece Swimsuit Girls Swimwear Age 13-14 Years

The Aisyee Girls Swimsuit is designed with adjustable buckles and elegant flounces, ensuring a comfortable fit for various body types. Its breathable fabric makes it perfect for summer vacations and beach trips, allowing your child to enjoy swimming without discomfort. Woven from quality materials, this swimsuit is soft and lightweight, providing excellent elasticity. The vibrant colours are resistant to fading, ensuring your girl stands out as a shining star on the beach.

What We Like
Comfortable and stylish design
Breathable and lightweight fabric
Bright colours that resist fading
Adjustable fit for various sizes
#TOP 2

Aisyee Adjustable One Piece Girls Swimsuit

Gradient Leopard
13-14 Years
Aisyee Adjustable One Piece Girls Swimsuit Cover
Aisyee Girls Swimsuit One Piece Girls Swimming Costume Kids Girls Swimwear Age 13-14 Years

The Aisyee Girls Swimsuit is designed with adjustable buckles and elegant flounces, making it perfect for growing girls. It is comfortable and breathable, ideal for summer beach trips and vacations. Crafted from quality fabrics, this swimsuit is soft, lightweight, and retains its bright colours wash after wash. Whether for swimming lessons or beach parties, this stylish one-piece is a great choice for any occasion, ensuring your child feels confident and looks fabulous.

What We Like
Adjustable for growing girls
Comfortable and breathable material
Bright colours that don’t fade
Versatile for various occasions
#TOP 3

BIQIQI Mermaid One Piece Swimsuit for Kids

Meimaid
8-9 Years
BIQIQI Mermaid One Piece Swimsuit for Kids Cover
BIQIQI Kids Girls Swimming Costume One Piece Swimsuit Mermaid Beach Bathing Suit Lightweight and Quick Drying Swimwear Swimming Suit for Toddler Girls 4 5 6 7 8 9 Years

The BIQIQI Mermaid Swimsuit is crafted from a comfy blend of 85% polyester and 15% spandex, ideal for your child’s sensitive skin. Its snug fit allows for unrestricted movement, ensuring your little one can swim and play comfortably. The charming mermaid design features colourful scales, appealing to adventurous spirits. Additionally, the swimsuit provides UPF 50+ sun protection, safeguarding delicate skin against harmful UV rays while enjoying water activities.

What We Like
Soft and breathable material
Snug fit for comfort
Cute mermaid design
UPF 50+ sun protection

HUAANIUE Girls Long Sleeve Swimwear with Zipper

12-13 Years
HUAANIUE Girls Long Sleeve Swimwear with Zipper Cover
HUAANIUE Long Swimsuit Girls Swimming 1pcs Swimwear UPF 50+ UV Sunsuit with Zipper 4-12Y Summer Swimming Sportswear(DaisyNavy,14A)

The HUAANIUE Girls Swimsuit is designed for comfort and protection during summer swimming. Made from a lightweight blend of 80% nylon and 20% Lycra, it ensures a comfortable fit that allows your child to swim freely without feeling restricted. The long sleeves and beautiful flower design not only look attractive but also provide UPF 50+ protection from harmful UV rays, keeping your child safe under the sun. Additionally, the front zipper makes it easy for you and your child to put on and take off the swimsuit quickly.

What We Like
UPF 50+ sun protection
Comfortable and stretchy fabric
Easy to put on and take off
Quick-drying material
Attractive flower design
#TOP 5

Aisyee Girls One Piece Swimming Costume 13-14 Years

Plam Leaf
13-14 Years
Aisyee Girls One Piece Swimming Costume 13-14 Years Cover
Aisyee Big Girls Swimming Costume Kids One Piece Swimsuit Girls Swimwear 13-14 Years

The Aisyee Girls Swimsuit is perfect for summer adventures. With adjustable buckles and elegant flounces, it offers a unique design that accommodates various body types, ensuring a comfortable fit. Ideal for beach trips, this one-piece is easy to care for and breathable, allowing your child to enjoy hours of fun in the sun. Made from quality, lightweight fabrics, it boasts bright colours that resist fading, making your little girl stand out beautifully at the poolside or beach.

What We Like
Adjustable buckles for better fit
Breathable and comfortable fabric
Bright colours that resist fading
Ideal for various summer activities

HUAANIUE Girls' CocoTree UV Protection Swimsuit

QS259_CocoTree_128/134
6-7 Years
HUAANIUE Girls' CocoTree UV Protection Swimsuit Cover
HUAANIUE Girls 2-12Y CocoTree with Heart Swimming Suit 50+UV Sun Protection Swimsuit Costume(CocoTree,128/134)

The HUAANIUE CocoTree Swimsuit is designed for girls aged 2 to 12 years, offering a comfortable and enjoyable swimming experience. Made from 80% nylon and 20% Lycra, this lightweight swimsuit dries quickly and is easy to put on and take off. With UPF 50+ sun protection, it effectively shields your child from harmful UV rays while swimming outdoors. Additionally, its high resistance to chlorine and saltwater ensures it remains durable for years, allowing your little one to enjoy countless summer adventures without feeling restricted.

What We Like
Excellent UV protection
Quick drying material
Durable against chlorine
Comfortable and flexible fit
#TOP 7

Aisyee Girls Floral One Piece Swimsuit

One Piece Purple
7-8 Years
Aisyee Girls Floral One Piece Swimsuit Cover
Aisyee Girls Swimming Costume Kids One Piece Swimsuit Girls Bathing Suit Hawaiian Floral Swimwear 7-8 Years

The Aisyee Girls Swimsuit is perfect for summer fun, featuring adjustable buckles and elegant flounces that ensure a comfortable fit, especially for taller or chubby children. The high-quality, breathable fabric makes it ideal for beach trips, providing both comfort and ease of care. With vibrant colours that resist fading, your child will stand out on sunny days. This swimsuit is suitable for various activities, including swimming lessons and beach parties, making it a versatile addition to their summer wardrobe.

What We Like
Adjustable for better fit
Comfortable and breathable fabric
Bright, fade-resistant colours
Versatile for multiple occasions
#TOP 8

BOVOSHA Girls Mermaid One Piece Swimsuit

BOVOSHA
Blue
9-10 Years
BOVOSHA Girls Mermaid One Piece Swimsuit Cover
BOVOSHA Girls Swimming Costume for Kids One Piece Mermaid Swimsuit Short Sleeve Zipper High Neck Swimwear (Pink, 9-10T)

The BOVOSHA Mermaid Swimsuit is crafted from a blend of 85% polyester and 15% elastane, ensuring a soft, lightweight, and quick-drying experience for your little one. The high neck design provides extra coverage, making it ideal for sunny days at the beach. With a front zipper, dressing is made easy, preventing any pinching of delicate skin. The vibrant mermaid scales design adds a fun element, transforming your girl into a princess while she swims or surfs.

What We Like
Soft and lightweight material
High neck for added coverage
Easy dressing with front zipper
Vibrant and attractive design
#TOP 9

Aisyee Girls One Piece Ruffle Swimsuit

9-10 Years
Aisyee Girls One Piece Ruffle Swimsuit Cover
Girls Swimming Costume Tie Dye Kids Girls Swimsuit One Piece Ruffle Swimwear Age 9-10 Years

The Aisyee Girls Swimsuit is a stylish and practical choice for summer fun. With adjustable straps and elegant flounces, this swimsuit accommodates various body shapes, ensuring a comfortable fit for your child. Its breathable fabric makes it ideal for warm beach days or swimming lessons. Crafted from quality materials, this swimsuit is lightweight and elastic, allowing for easy movement. The vibrant colours are designed to last, making your little one the star of any summer outing.

What We Like
Adjustable straps for comfort
Breathable fabric for warm weather
Durable and vibrant colours
Perfect for various occasions
Buying Guide Image
Editor's Notes

During our lightweight one-piece swimsuit for girls research, we found 306 lightweight one-piece swimsuit for girls products and shortlisted 9 quality products. We collected and analyzed 10,909 customer reviews through our big data system to write the lightweight one-piece swimsuits for girls list. We found that most customers choose lightweight one-piece swimsuits for girls with an average price of £16.96.

The lightweight one-piece swimsuits for girls are available for purchase. We have researched hundreds of brands and picked the top brands of lightweight one-piece swimsuits for girls, including Aisyee, BIQIQI, HUAANIUE, BOVOSHA. The seller of top 1 product has received honest feedback from 69 consumers with an average rating of 4.4.

Written by
John Zimmer Avatar

John Zimmer is a truly professional writer on findthisbest.com. He has specialized in writing content a wide variety of fields for over a decade. Since 2011, he has been using his expertise and extensive experience to write content for online shopping guide websites. In addition to writing for findthisbest.com, he has appeared in publications such as The Spruce, Wirecutter and Bestbuy.