Best Competitive Swimwear Girls Two-Piece Suits of 2025

Keira Murphy Avatar
Keira Murphy
Last Updated: 7 Feb 2025

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For young female swimmers who are looking for high-quality swimwear that can withstand the rigours of competitive swimming, the two-piece swimsuits in this collection are an excellent choice. Made from durable and stretchy materials, these swimsuits are designed to provide a comfortable and streamlined fit that won't hinder your performance in the water. With a range of stylish designs and colours to choose from, these swimsuits are perfect for young athletes who want to look and feel their best while they swim.

At a Glance: Our Top Picks

Speedo Allover 2 Piece Boyleg Swimsuit Cover #TOP 1
Speedo Allover 2 Piece Boyleg Swimsuit
ftb score rating icon 9.9
Planet Mermaid Deluxe Swimming Costume Set Cover #TOP 2
Planet Mermaid Deluxe Swimming Costume Set
ftb score rating icon 9.8
Speedo Girls' Anthracite Two-Piece Tankini Set Cover #TOP 3
Speedo Girls' Anthracite Two-Piece Tankini Set
ftb score rating icon 9.6

Top 10 Competitive Swimwear Girls Two-Piece Suits

#TOP 1

Speedo Allover 2 Piece Boyleg Swimsuit

8-12860G674
5-6 Years
Speedo Allover 2 Piece Boyleg Swimsuit Cover
Speedo Swimsuit Brand Model Allover 2 Piece Boyleg Short

The Speedo Boyleg Swimsuit is designed for comfort and performance. This tankini offers more coverage with boyshorts, allowing you to swim with confidence. It features greater chlorine resistance than standard fabrics, ensuring it maintains its shape and colour longer. The fabric also stretches to provide unrestricted movement, so you can enjoy your swim without feeling constrained. With Speedo's focus on quality, you can concentrate on performing at your best while wearing this stylish swimsuit.

What We Like
More coverage with boyshorts
Chlorine-resistant fabric
Unrestricted movement
Quality materials
#TOP 2

Planet Mermaid Deluxe Swimming Costume Set

SBP89TAITANBMF
Starbright Princess
8 Years
Planet Mermaid Deluxe Swimming Costume Set Cover
Planet Mermaid Kids Deluxe Set Vivid Colour Mermaid Tail Swimming Costume for Girls. Includes Swimming Aid Pink Magic Fin, Tail, Tankini Top & Briefs. Starbright Princess, 8-9 Years

The Planet Mermaid Costume Set is designed to help build your confidence in the water. With its swimmable magic fin, tail, tankini top, and briefs, this set encourages you to enjoy swimming activities while staying healthy and fit. The beautiful, breathable fabric features vibrant colours and a fun 3D scales effect, making it look like a real mermaid tail. As the UK's leading manufacturer, the comfortable and durable monofin enhances your speed in the water, allowing for a more enjoyable swimming experience.

What We Like
Encourages confidence in water
Includes all essential pieces
Vibrant colours and design
Durable and comfortable monofin
#TOP 3

Speedo Girls' Anthracite Two-Piece Tankini Set

GTHICKSTRAPTANKINI2PC
Anthracite
Speedo Girls' Anthracite Two-Piece Tankini Set Cover
Speedo Girls' Swimsuit Two Piece Tankini Thick Strap Set, Anthracite, 12

The Speedo Girls' Tankini Set is designed to keep you protected and comfortable while swimming. With UPF 50+ protection, this swimsuit effectively blocks up to 98% of the sun's harmful rays, allowing you to enjoy your time outdoors without worry. The superior chlorine-resistant Creora Highclo Spandex ensures that the fabric remains durable and retains its shape, even after repeated use in pools. Plus, the pilling-resistant fabric keeps your swimsuit looking fresh and new. With no wedgie worries, you can swim freely, knowing that this tankini offers stay-put coverage.

What We Like
UPF 50+ sun protection
Chlorine-resistant fabric
Pilling-resistant material
No wedgie worries
#TOP 4

Speedo Girls' Rainbow Stripe Bikini Set

GBIKINI2PCSET
Speedo Girls' Rainbow Stripe Bikini Set Cover
Speedo Girls' Swimsuit Two Piece Bikini Set, Rainbow Stripe Anthracite, 14

The Speedo Rainbow Stripe Bikini offers excellent features for young swimmers. It is made from chlorine-resistant fabric, ensuring the vibrant colours stay intact even after numerous pool visits. The pilling-resistant material enhances durability, making it suitable for regular wear. Additionally, the swimsuit provides all-over protection with UPF 50+ to shield you from harmful sun rays, allowing for safe outdoor fun. Finally, its superior Creora Highclo Spandex ensures a comfortable fit, so you can swim freely without any restrictions.

What We Like
Chlorine resistant fabric
Pilling resistant for durability
UPF 50+ sun protection
Comfortable fit
#TOP 5

Dolfin Girl's Uglies Comfort Bikini Swimsuit

Dolfin
9710RAWR-14
Rawr
Dolfin Girl's Uglies Comfort Bikini Swimsuit Cover
Dolfin Girl's Uglies 2-Piece Bikini Swimsuit

The Dolfin Uglies Bikini offers exceptional all-day comfort, making it ideal for serious swimmers like you. Its design conforms to your body without restriction, allowing for extended wear during practices or casual swims. With unique and adorable designs, you can express your style while enjoying performance. Plus, as a trusted brand for over 50 years, Dolfin Swimwear ensures high standards of innovation and quality. This swimsuit is perfect for those who value both comfort and aesthetics.

What We Like
Comfortable for long wear
Stylish and unique designs
Trusted brand with quality
High-performance swimwear
UPF 50+ sun protection
#TOP 6

Speedo Girl's Macaw Blue Tankini Set

GTHINSTRAPTANKINI2PC
Macaw Blue
Speedo Girl's Macaw Blue Tankini Set Cover
Speedo Girl's Swimwear Printed Tankini Set, Macaw Blue, 12

The Speedo Tankini Set is an ideal choice for young swimmers. Made from recycled fabric, it promotes sustainability while providing comfort. Its chlorine-resistant material ensures that the swimsuit maintains its quality and looks even after numerous swims. Additionally, the set offers UPF 50+ protection, safeguarding your skin from harmful sun rays during outdoor activities. With its pilling-resistant feature, you can enjoy a smooth and durable fit, making it perfect for both training and leisure.

What We Like
Eco-friendly recycled fabric
Chlorine resistant
UPF 50+ sun protection
Pilling resistant
#TOP 7

Planet Mermaid Deluxe Set for Girls

SBP89TAICRBMF
Starbright Princess
8 Years
Planet Mermaid Deluxe Set for Girls Cover
Planet Mermaid Kids Deluxe Set Vivid Colour Mermaid Tail Swimming Costume for Girls. Includes Swimming Aid Magic Pink Fin, Tail, Crop Top & Briefs. Starbright Princess, Age 8-9

The Planet Mermaid Set is designed to help build your child's confidence in the water. It includes a swimmable magic fin, a beautiful tail, a crop top, and briefs, making it perfect for imaginative swimming adventures. The vibrant colours and 3D scales effect give the illusion of a real fish tail, adding to the fun. Made from breathable fabric in the UK, this high-quality costume is durable and comfortable, ensuring hours of enjoyment while enhancing swimming skills.

What We Like
Encourages confidence in the water
Includes essential swimming aids
Durable and high-quality fabric
Vibrant and fun design
#TOP 8

Speedo Girls' Red/White/Blue Tankini Set

GTHICKSTRAPTANKINI2PC
Red/White/Blue
Speedo Girls' Red/White/Blue Tankini Set Cover
Speedo Girls' Swimsuit Two Piece Tankini Thick Strap Set, Red/White/Blue, 6 UK

The Speedo Girls' Tankini Set is designed for the competitive swimmer seeking both style and functionality. With UPF 50+ protection, it effectively blocks up to 98% of the sun's harmful rays, ensuring you stay safe while enjoying the water. The superior Chlorine Resistant Creora Highclo Spandex maintains the suit's shape and durability, allowing for long-lasting wear. Additionally, the pilling resistant fabric keeps the swimsuit looking fresh and new, making it a practical choice for regular use.

What We Like
UPF 50+ sun protection
Chlorine resistant material
Pilling resistant fabric
Durable for regular use
#TOP 9

Gevomir Women's Boho Floral Summer Dress

Gevomir
Z-deep Red
Gevomir Women's Boho Floral Summer Dress Cover
Gevomir Womens Halter Neck Summer Boho Floral Print Casual Sleeveless Backless Vintage Ruffle Belt Sexy Short Dresses, Z-deep Red, S

The Gevomir Summer Dress is crafted from high-quality, lightweight fabric that feels soft and comfortable against your skin. This two-piece outfit features a stylish halter crop top that accentuates your waistline, providing a flattering fit suitable for various body shapes. The ruffled hem of the skirt adds a charming pleated detail, enhancing the dress's sweet appearance. Perfect for leisure or beach outings, you can easily pair it with flat shoes or heels for a youthful and vibrant look.

What We Like
Lightweight and comfortable fabric
Flattering halter crop top
Charming ruffled hem
Versatile for multiple occasions
Easy to style with accessories
#TOP 10

Speedo Bubble Ombre High Neck Tankini Set

GTHINSTRAPTANKINI2PC
Super Sonic
Speedo Bubble Ombre High Neck Tankini Set Cover
Speedo Bubble Ombre High Neck Tankini Twopiece, Super Sonic, 12

The Speedo Bubble Ombre Tankini is made from recycled fabric, making it an eco-friendly choice for your swimwear collection. Its chlorine-resistant feature ensures longevity, allowing you to enjoy your time in the pool without worrying about wear and tear. With UPF 50+ protection, this tankini helps block harmful UV rays, keeping your skin safe while you swim outdoors. Additionally, its pilling-resistant quality means that you can maintain a sleek appearance, making it perfect for competitive swimmers and leisure users alike.

What We Like
Eco-friendly recycled fabric
Chlorine resistant for durability
UPF 50+ sun protection
Pilling resistant for a sleek look
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What are competitive swim suits called?

The style of men's competition swimsuits is called a jammer. With the extreme focus placed on compression technology, you can easily see why. As suit rules have ebbed and flowed over the years, current international specifications dictate a suit for men that can run only from the belly button to the top of the knees.

2. What is a two piece bathing suit called?

A bikini is a women's two-piece swimsuit featuring two triangles of fabric on top that cover the woman's breasts, and two triangles of fabric on the bottom: the front covering the pelvis but exposing the navel, and the back covering the buttocks.

3. What are girls swim suits called?

A one-piece swimsuit most commonly refers to swimwear worn primarily by women and girls when swimming in the sea or in a swimming pool, playing water polo, or for any activity in the sun, such as sun bathing.

4. How should a competitive swimsuit fit?

Competition Swimsuit Fit Guide A properly fitting swimsuit should fit closely against your body. Bunching at the seams or tightness and pulling at the straps and openings usually indicates an incorrect size. You should be able to move freely without causing the neck or leg openings of the suit to stretch.

Editor's Notes

During our competitive swimwear girls two-piece suit research, we found 15 competitive swimwear girls two-piece suit products and shortlisted 10 quality products. We collected and analyzed 4,331 customer reviews through our big data system to write the competitive swimwear girls two-piece suits list. We found that most customers choose competitive swimwear girls two-piece suits with an average price of £23.84.

The competitive swimwear girls two-piece suits are available for purchase. We have researched hundreds of brands and picked the top brands of competitive swimwear girls two-piece suits, including Speedo, Planet Mermaid, Dolfin, Gevomir. The seller of top 1 product has received honest feedback from 3,928 consumers with an average rating of 4.6.

Written by
Keira Murphy Avatar

Keira Murphy is an outdoorsy girl who loves sports and the outdoors. She's from the UK, but now lives in New York. Keira also has a YouTube channel where she uploads videos of her playing different sports, exploring new places or doing outdoor activities with friends. She started her channel because she wanted to share her love for sports and the outdoors with others who may not be able to get out as much as they would like due to injury, disability or other reasons. Her favorite sport is basketball!