10 Best Speedo Kids Swimsuit 3 4 in The UK

Last updated on 28/06/2025

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Speedo Boy's Learn to Swim ESential Wetsuit Neoprene Suit | SwiMing LeSons | Soft Touch | Neoprene, Turkish Sea, 4YRS4YRS

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Why We Love It

Ergonomic design enhances mobility.
Quick-drying for versatile adventures.
Eco-friendly recycled fabric used.

Main Highlights

Explore more in our new Lookout Short and go beyond the pool and the surf on your toes. Adventure hard in soft Speedo 4Way Flex fabric, cut in an ergonomic design for maximum mobility. Quick-drying, water-repellent fabric transitions seamlessly from wet to dry adventures, so you’re ready for anything. Designed with a built-in liner, hidden back zip pocket, and UPF50+ sun protection. Speedo 4Way Flex fabric is made with Creora Regen, the first 100% Recycled Spandex made from reclaimed waste. Proven to perform as well as virgin Spandex.
Speedo 4Way Flex fabric made with Creora Regen the first 1% Recycled Spandex made from reclaimed waste, which performs as well as virgin Spandex with UPF5+ sun protection and durable water-repellent.
Elastic drawcord for a secure fit
Length: 2 Inch Inseam, 12 Inch Outsseam
Built-in swim liner made of 5% recycled jersey polyester

Speedo Girl's Learn to Swim Neoprene Wetsuit| Swiming LeSons | Soft Touch | Neoprene, Neon Violet, 4YRS4YRS

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Why We Love It

Stay hydrated during workouts.
Made from sustainable sugarcane.
Spill-proof design for convenience.

Main Highlights

Stay hydrated during long training sessions using our new 1-litre Water Bottle. Ideal for keeping poolside between swim sets, our largest-capacity water bottle has an ergonomic, easy-grip design with a textured side and a one-way valve cap to prevent spills. Made in part using biobased materials – the body of the bottle is made from 100% sugarcane.
1 Litre capacity - larger size capacity for longer usage.
Biobased materials - bottle body made from sugarcane.
Grip ring & side grip texture - highly functional grip placement for ease-of-use pool side during quick swim sets.
Auto cap - one-way valve for easy drinking without spillage.

Osprey Childrens Toddlers 3 Mm Shorty Summer Wetsuit With SPF 50+ For Boys And Girls, Oyster - Pink, Age 4 EU

6% Off

Why We Love It

Perfect for warm weather.
Enhanced comfort and flexibility.
Provides essential sun protection.

Main Highlights

SHORTY 3MM WETSUIT: is the ideal shorty wetsuit for spring/summer season, with 3mm neoprene on the body and 2mm under the arms for full range of motion
FUNCTIONAL SWIMSUIT: entirely flat locked seams and ergonomic panelling for maximum comfort. Our high quality flexible wetsuit provides high freedom of movement and insulation
SUN PROTECTION: the nylon fabric features UBF 50+ sun protection, to provide children with hours of endless swim and activities whilst being protected from the harmful ultraviolet rays
DESIGN: especially designed with stretch collar and comfortable anti rub openings, to prevent chafing and water flushing! Features a vibrant eye-catching colour so that they are easy to keep an eye on
SBR FOAM: increases flexibility and improves durability for long term use. The front zip is for easy changing in and out, shorty length keeps child's core warm without limiting movement

Girls One Piece Swimming Costume Swimsuit (UK, Age, 3 Years, 4 Years, Mermaid)

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Why We Love It

Quality fabric for lasting comfort.
Flexible sizing for growing girls.
Adorable design for playful fun.

Main Highlights

QUALITY MATERIAL: Girls swimming costume is made of 85% polyester and 15% spandex. Elastic, soft, quick drying, stretchy fabric that provides excellent coverage and durability for swim. Vibrant colors keeping the swimsuit not easy to fade.
SIZE CHARTS: This swimwear available in multiple sizes to accommodate different age groups, with stretchy fabric for growing children, suitable for little girls aged from 2-10 years old and also for various body shapes. Please select the appropriate size according to the size chart.
COMFORT FEATURES: This swimming suit with elastic shoulder straps and elastic leg openings ensure secure fit and easy movement whilst swimming.
APPLICATION: The one-piece swimsuit is great for various occasions like swimming lessons, pool parties, beach outings, water play, and summer holidays. It also makes for a perfect gift for little girls!
CUTE DESIGN: One-piece swimsuit style featuring a playful pattern and comfortable fit, very lovely, perfect for little girls.

Speedo Unisex Kids ILusion SwiMing Goggles | Secure Fit | Anti-fog | Anti-leak, Azure/Fluo Green/Fluo Orange, One Size

14% OffFree Shipping

Why We Love It

Provides superior UV protection.
Anti-fog lens enhances visibility.
Adaptable and comfortable fit.

Main Highlights

100% UV Protection against all harmful UVA & UVB radiation
Anti fog coated lens – so your child can always see you in the pool
Push button adjuster at rear provides quick and easy fitting for parents
Flexible one-piece construction adapts to your child's face shape
Integrated silicone seal and strap for easy fitting, comfort and durability

Enhances shoulder movement flexibility.
Constructed with eco-friendly materials.
Promotes sustainability through recycling.

Main Highlights

Classic sports styling, straight from the Speedo design archives. This sporty HyperBoom Jammer nods to our brand heritage with a revival of our iconic go-faster Boom Logo stripe. It's cut with a front support liner and an adjustable drawstring for comfort and security during training. Be ready to go again in the quick-drying Endurance+ fabric, designed for durability with high chlorine resistance. Body made of 53% Recycled Polyester, 47% PBT.
Endurance+ Fabric: Body made of 53% Recycled Polyester, 47% PBT. Recycled Polyester yarns are made from 1% post-consumer waste, such as recycled plastic bottles, with high chlorine resistance and quick dry
Drawstring waist for enhanced fit and security
Front Liner made from 1% Recycled Polyester

AmzBarley Girls Swimming Costume Swimsuit Kids One Piece Swimwear Leopard Skirt Leotard Children Swim Wear Bathing Suit Summer Holiday Beachwear Age 3-4 Years 110

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Why We Love It

Adorable mermaid swimsuit design.
Soft, skin-friendly polyester fabric.
Quick drying and breathable.

Main Highlights

Adorable shoulder straps one piece swimming costume for your girls;
Polyamide and elastane, ice touch and silky soft, skin-friendly, comfortable fabric for your kids'skin;
Quick drying and breathable, chlorine and salt resistant designed for a long lasting wear;
One piece swimsuit, spafhetti shoulder straps, 3D printed, triangle briefs with ruffle skirt, offer a flattering look;
Beautiful swimming costumes for your little girls for swimming, surfing, bathing, beach holiday, poolside party, etc. Children will love it!

Bluey Swimsuit | One Piece Girls Swimsuit | Children's Swimming Costumes | Pink 3-4 Years

Why We Love It

High-quality and durable.
Ideal for Bluey fans.
Comfortable and stylish fit.

Main Highlights

Official Bluey Merchandise: Adorned with the beloved Heeler family and playful dark pink ice cream cones, this one piece Bluey swimsuit is perfect for young fans. The charming pink background with light blue sleeves, featuring the iconic Bluey logo, makes this girls swimsuit a must-have for any Bluey enthusiast
Make A Splash With Girls' One-Piece Swimsuits: Designed with your little one's comfort in mind, this Bluey swimming costume includes a convenient zipper on the back, giving a comfy fit for all-day fun in the water. It's the ideal choice for beach days, pool parties, or any aquatic adventure with Bluey and Bingo
Durable Quality For Active Kids: Crafted with high-quality polyester and elastane blend, this girls swimwear is not only stylish but also durable enough to withstand the rigors of active play. Whether it's a day at the beach or swimming lessons, this kids swim suit is made to last
Perfect Bluey Gift For Fans: This swimsuit makes an excellent Bluey gift, perfect for birthdays, holidays, or as a special surprise. If your child loves Bluey and Bingo, this Bluey girls swimming costume will surely bring a smile to their face
Versatile Girls Swimwear: Suitable for various occasions in Spring and Summer, this girls all in one swimsuit is a versatile addition to your child's wardrobe. It's not just a swimming costume; it's a piece of Bluey beach fun that can be paired with other Bluey accessories like a Bluey towel for a complete look fans will love

Girls Boys Bluey Swimsuit Swimming Suit Costume (Bluey, 3-4 Years)

36% OffFree Shipping

Why We Love It

Perfect for Bluey fans.
Comfortable and practical design.
Ideal for various ages.

Main Highlights

These are super Bluey all in one swimsuits, ideal for both girls and boys.
The childrens Bluey swim suit has your favourite characters Bluey and Bingo playing sand castles on the beach.
Little ones will love wearing the Bluey swimming suit, perfect for holidays, swimming lessons or outdoor play time!
The kids Bluey swimming costume comes with short sleeves and legs, high neck, with zip fastening to the back.
Sizes available for the Bluey swimsuit: 1-2 Years, 2-3 Years, 3-4 Year, 5-6 Years, 7-8 Years.

Girls Peppa Pig Swimsuit Swimming Suit Costume (Peppa Pig, 3-4 Years)

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Why We Love It

Adorable Peppa Pig design.
Comfortable and easy to wear.
Perfect for swim fun.

Main Highlights

These are super girls Peppa Pig all in one swimsuits.
The childrens Peppa Pig swim suit has your favourite Peppa Pig character surrounded by beautiful shells and seahorses, with the words Mermazing.
Little ones will love wearing the Peppa Pig swimming suit, perfect for holidays, swimming lessons or outdoor play time, whilst imaging themselves as mermaids.
The kids Peppa Pig swimming costume comes with short sleeves and legs, high neck, with zip fastening to the back. With a pretty ruffle feature to the sleeves.
Sizes: 1-2 Years, 2-3 Years, 3-4 Year, 5-6 Years.

8.7

Excellent

We scanned 1155 products

We reviewed these offers relevant to the Speedo Kids Swimsuit 3 4 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 Speedo, Osprey, PinkSheep, AmzBarley, Bluey, Peppa Pig, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Speedo Kids Swimsuit 3 4 in the market, we considered we took a deep dive into 5776 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 Speedo Boy's Learn to Swim ESential Wetsuit Neoprene Suit | SwiMing LeSons | Soft Touch | Neoprene, Turkish Sea, 4YRS4YRS. We love many things about this product by Speedo. What sets it apart from the competition is Ergonomic design enhances mobility. , Quick-drying for versatile adventures. , Eco-friendly recycled fabric used. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Speedo Girl's Learn to Swim Neoprene Wetsuit| Swiming LeSons | Soft Touch | Neoprene, Neon Violet, 4YRS4YRS by Speedo based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Speedo Kids Swimsuit 3 4 and the best cost-to-value ratio is Girls Boys Bluey Swimsuit Swimming Suit Costume (Bluey, 3-4 Years)at Bluey with a 36% discount.
Our list of the best Speedo Kids Swimsuit 3 4 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 Speedo Kids Swimsuit 3 4 in The UK

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We concluded that: