10 Best Girls Swimsuit 11 12 Years in The UK

Last updated on 15/08/2025

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Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit with Shorts Young Girls Floral Swimwear Crew Neck Bathing Suit Purple 10-12 Years

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Why We Love It

Comfortable and quick-drying fabric.
Fashionable floral print design.
Ideal for numerous occasions.

Main Highlights

Comfortable Fit: Our floral swimming suits for girls are made of 82% polyester fibres and 18% elastic fibres. Skin-friendly and soft, breathable and quick-drying. Make your sweetie comfortable all day long
Trendy Design: This kids one piece swimwear with shorts features floral print and crew neck, add fashion and comfy. The flattering design with shorts protects the girl's privacy while showing off her diverse charms
Age Range: Suitable for girl purple bathing suit 3-4 years, kid swimwear 4-5 years, young girl floral swimsuit 5-6 years, big girl one piece beachwear 7-8 years, child swimming costume 9-10 years, tween swimwear 10-12 years, teen fashion swimsuit 12-14 years
Suitable places: The tween girl swimsuits are perfect for swimming, seaside, beach, pool parties, wark sports, swimming lessons, hot springs, holidays, summer vacations and other any occasion
Washing Care: To keep the swimming costume in good condition and for long term use, we recommend hand washing for the first wash and washing it separately from dark colours. This stylish swimming costume is also an ideal birthday gift for your girls and friends

Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit Kids Black Swimwear Legsuit Young Girl Sleeveless Beachwear Bathing Suit 10-12 Years

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Why We Love It

Comfortable and quick-drying fabric.
Stylish and versatile design.
Perfect for various activities.

Main Highlights

Comfortable Fit: Big girls black swimming suits is made of 82% polyester fibres and 18% elastic fibres. Select quality fabric, skin-friendly and no-irritating, breathable and quick-drying. Give your girls a great wearing experience
Fashion Design: This girls bathing suit is designed with wide shoulder straps to reduce the pressure on the shoulders and make it easier to move around. Hip wrapping design protects the girl's privacy. The black colour is versatile and fashionable, and the back is uniquely designed with cut-outs to show off the girl's perfect figure
Versatile Wear: The teen girls swimwear suitable for swimming pool, seaside, water sports, water activities, pool parties, hot springs, beach wear, holidays, summer vacations, school PE class and more
Age range: Perfect for girls black swimming costume 3-4 years, young girls swimsuit 4-5 years, kids one piece swimsuit 5-6 years, children legsuit swimwear 7-8 years, big girl bathing suit 9-10 years, tween girl beachwear 10-12 years, teen girl fashion bikini set 12-14 years
Washing Care: Hand wash and machine washable, easy to care. Do not bleach, iron or tumble dry.This chic and adorable girls swimwear is the perfect gift for your girl and friend's

Ewbob Girls One Piece Swimsuit Quick Dry Swimwear Swimming Costume Beach Bathing Suit for Kids(C3-006)-Pink-11-12Y

8% OffFree Shipping

Why We Love It

High quality durable fabric.
Comfortable second skin fit.
SPF 30+ sun protection.

Main Highlights

【Material】：Girls swimsuits are made of 85% polyester，15% elastane，durable and soft fabrics assured flexible movements
【Comfortable】：The kids swimwear for girls is easy to wear and ensures maximum comfort by fitting like a second skin; the wide straps and ergonomic back cut offer optimal support and comfortable
【Quick Drying】：Swimming costume girls are made of quick drying material, light weight and breathable fabric,comfortable to wear
【Sun Protection】：Girls one piece swimsuit is made by applying SPF 30+ rated fabric，provide UV sun protection，Great for swimming, surfing, bathing, beach wear or pool and excellent for learning to swim
【Unique Pattern】The swimsuit for girl with the fade-resistant colorful patterns，make your girl stand out in beachside pool Settings，perfect for summer water outings

JiAmy Girls Swimming Costume with Skirt Chic Flower-Cut Sleeveless Summer Kids Swimsuit Swimwear Beachwear for 11-12 Years, Black

7% OffFree Shipping

Why We Love It

Comfy, lightweight, and breathable fabric.
Chic design with trendy patterns.
Perfect for summer water activities.

Main Highlights

🌊Comfy Material: Made of 82% polyester and 18% elastane, this girls swimsuit is lightweight, breathable, and stretchy. The quick-drying fabric keeps your girl comfy all day, perfect for summer water fun!
🌊Chic Design: This one-piece swimsuit features a trendy geometric print with side floral cut-outs and a round neckline, giving it a modern and playful look. It comes with a matching mesh wrap skirt for extra coverage and style. Adjustable straps ensure a snug and comfortable fit.
🌊Summer Occasions: Ideal for beaches, pools, water parks, vacations, or even photo shoots. It’s a stylish and practical choice for any water activity.
🌊Size Options: JiAmy girls swimming costume available in age of 7-8, 9-10, 11-12, and 13-14. For taller or faster-growing girls, we recommend sizing up.
🌊Package Includes: 1 swimsuit for girls + 1 mesh wrap skirt. The skirt can also be used as a shawl or scarf, adding both style and sun protection. A perfect blend of fashion and function!

Girls One Piece Swimsuits with Spaghetti Strap Ribbed Swimming Bathing Suit Swimwear for Kids Girls 9 10 11 12 13 14 15 16 Years

13% OffFree Shipping

Why We Love It

Comfortable and breathable material.
Stylish design with adjustability.
Perfect for various summer activities.

Main Highlights

Premium Material: The girls adjustable one-piece swimsuit, made of 85% polyamide and 15% elastane, conveys lightweight, breathable, stretchy and high-quality texture, ensuring your girls comfortable all day long.
Stunning Girls Swimwear: The teens girls one-piece swimsuit features a simple but classic solid color design, removable pads, adjustable shoulder straps, and comes with adjustable side drawstrings, providing full coverage and comfort to enjoy any water activities in summer time.
Great Matching: This girls' swimsuit can be perfectly goes with girls beach cover-ups, sunglasses, beach hats, slippers to create a stunning summer look and your girl will be a star in the crowd.
Various Occasions: Holiday, Spring Break, Water Park, Swimming Pool, Beachwear, Beach Sports, Swimming Lessons, Swimming, Surfing, etc.
Multiple Size Choices: This one-piece bathing suit is suitable for girls age 9-10 years, 11-12 years, 13-14 years and 15-16 years. This girls fashion swimsuit is a must-have in summer.

LYZOURBB Girls 3PCs Swimsuit Costume Bathing Suits Bikini Set with Floral Cover Up for Girls 8-13Years White

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Why We Love It

Soft and comfortable fabric.
Cute feather prints design.
Perfect for summer activities.

Main Highlights

Material: High quality polyester fabric, which is stretchable, very soft and comfortable for kids to wear
Pattern: Cute feather prints, spaghetti strap, backless, drawstring side, triangle thong, 3 piece set
Occasions Recommended: Great for summer holiday vacation, swimming, beach wear, pool party, swimsuit, bathing, etc
Sizes are suitable for 8-13 years old girls
Package includes 3 pcs bikini set swimsuit for girls

Girls Swimming Costume Padded Bras Long Sleeve Kids Swimsuit Two Pieces Swimming Suits Teen Girl Swimwear with Swim Short Summer Beach Pool,Pink 11-12 Years

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Why We Love It

Smart, comfy design for kids.
UPF 50+ offers sun protection.
Easy wear for active adventures.

Main Highlights

Smart & Comfy Design: This girls swimming costume with padded bras combines stretchy fabric, a soft round neck, and breathable mesh lining – lightweight, quick-drying, and built for sun safety. Perfect as a girls swimsuit for ages 8-12.
UPF 50+ Sun Defense: Designed as a kids swimming costume with UPF 50+, it shields skin from UV rays, ideal for girls swimming costume age 11-12 and 12-13 during beach days or pool parties.
Easy 2-Piece Set: The girls swim suit (top + shorts) offers full coverage with padded bras for modesty and support, easy wear, and playful prints. A go-to bathing suit for active kids in water sports or swim classes.
Ready for All Water Fun: From family vacations to outdoor adventures, this swimming suit suits kids aged 8-12. Great for beach trips, summer camps, or casual splashing!
Size Guide for Growing Kids: Fits girls swimming costume age 8-12 Years. Check our chart to match your child’s measurements.

Speedo Girl's Hyperboom ALover Medalist Swimsuit |Quick Drying | FitneS | Chlorine Resistant, Bright Peach, 11-1211-12

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Why We Love It

Exceptional stretch and comfort.
Ideal for training and performance.
Durable fabric for long-lasting use.

Main Highlights

EnduraFlex: Body made of 80% Nylon, 20% Elastane (Creora HighClo).
Medalist design aids shoulder movement and flexibility, making this suit ideal for training
Medium Leg
Front Liner made from 100% Polyester

adidas Girl's Solid Small Logo Swimsuit, Black / White, 11-12 Years

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Why We Love It

Sustainable recycled nylon material.
Chlorine-resistant fabric.
Comfortable jersey lining.

Main Highlights

Regular fit
G-back
78 percent recycled nylon, 22 percent elastane tricot
Jersey lining
Infinitex fitness eco chlorine-resistant fabric
Medium-height leg

DivingBirds Girls Swimming Costume Padded Bras One Piece Kids Swimsuit Neon Swimming Suit for Girls Bathing Suits UV Sunsafe Swimwear Beach Pool,Blue 11-12 Years

9% OffFree Shipping

Why We Love It

Quick-dry for active play.
UPF 50+ for sun protection.
Vibrant designs spark joy.

Main Highlights

Stretchy & Quick-Dry Girls Swimming Costume: Crafted from soft polyester-spandex blend, this girls swimsuit with padded bras offers full-body flexibility and dries fast – perfect for water play or poolside lounging.
UPF 50+ Kids Swimming Costume: DivingBirds kids swimming costume blocks 98% UV rays when paired with sunscreen. Protects delicate skin during beach days or swim lessons.
Bold Swimming Suit for Girls: Choose vibrant swimming suit for girls with Me scales, neon patterns, or tropical motifs. Every design adds magic to summer memories.
Splash-Ready Versatility: Ideal for beach vacations or birthday pool parties – the ultimate girls swimming costume and kids swimming costume for endless summer fun.
Size Guide for Growing Girls: Fhis girls bathing suit fits ages 8-13 (detailed size chart included). Check measurements to ensure the perfect fit for your child’s kids swimwear needs.

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We scanned 1274 products

We reviewed these offers relevant to the Girls Swimsuit 11 12 Years within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Xumplo, Ewbob, JiAmy, URMAGIC, LYZOURBB, DivingBirds, Speedo, adidas, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Girls Swimsuit 11 12 Years in the market, we considered we took a deep dive into 6371 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit with Shorts Young Girls Floral Swimwear Crew Neck Bathing Suit Purple 10-12 Years. We love many things about this product by Xumplo. What sets it apart from the competition is Comfortable and quick-drying fabric, Fashionable floral print design, Ideal for numerous occasions.
The best value product for most shoppers and where user satisfaction is continuously the highest is Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit Kids Black Swimwear Legsuit Young Girl Sleeveless Beachwear Bathing Suit 10-12 Years by Xumplo based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Girls Swimsuit 11 12 Years and the best cost-to-value ratio is Girls One Piece Swimsuits with Spaghetti Strap Ribbed Swimming Bathing Suit Swimwear for Kids Girls 9 10 11 12 13 14 15 16 Yearsat URMAGIC with a 13% discount.
Our list of the best Girls Swimsuit 11 12 Years is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Girls Swimsuit 11 12 Years in The UK

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We scanned 1274 products

We concluded that: