Best Designer One-Piece Swimsuits for Girls of 2026

Name: Okdance Swimming Costume for Boys Girls
Brand: Okdance

John Zimmer

Last Updated: 3 Feb 2026

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Designer one-piece swimsuits are a stylish and fashionable choice for girls looking to make a statement by the pool or at the beach. These swimsuits are crafted with attention to detail, featuring unique designs, vibrant colours, and high-quality materials. They provide both comfort and confidence, allowing girls to enjoy their time in the water without worrying about their swimwear. With a range of sizes and styles available, these designer one-piece swimsuits are a great choice for girls who want to look and feel their best while enjoying the water.

At a Glance: Our Top Picks

#TOP 1

Okdance Swimming Costume for Boys Girls

9.9

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Okdance Swimming Costume for Boys Girls

#TOP1

9.9

Read Review

#TOP 2

Ewbob Girls One Piece Quick Dry Swimsuit

9.8

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Ewbob Girls One Piece Quick Dry Swimsuit

#TOP2

9.8

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#TOP 3

Lancry One Piece Black Girls Swimming Costume Girls Swimsuit Quick Dry Stretchy Swimwear

9.6

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Lancry One Piece Black Girls Swimming Costume Girls Swimsuit Quick Dry Stretchy Swimwear

#TOP3

9.6

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Top 10 Designer One-Piece Swimsuits for Girls

#TOP 1

Okdance Swimming Costume for Boys Girls

Okdance

Pink

12-14 Years

Okdance Swimming Costume for Boys Girls, One-Piece Kids Swimsuit Short Sleeve Swimming Costume for Summer Surfing Swimming Water Sports Boy Girl (UK, Age, 12 Years, 14 Years, Regular, Pink)

9.9

FTB Score

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Features

High-Quality Durable Material: Made Of Polyester Fabric, This Children's Swimsuit Is Not Only Durable But Also Flexible, With Low Water Content And Extremely Fast Drying Performance, So That Children Are Ready To Dive Into The Water At Any Time And Enjoy Happy Time.

Appropriate Size Selection: Our Kids Swimsuit Is Equipped With A Detailed Size Table. It Is Recommended To Make Accurate Selection According To The Actual Height, Measurements And Weight Of The Child To Ensure A Perfect Fit And Comfortable Wear.

Multifunctional Use: Designed For All Kinds Of Water Sports, This Children's Swimsuit Is Very Suitable For Diving, Swimming, Surfing, Kayaking And Beach Games, So That Your Children Can Enjoy Summer Activities

Intimate After-Sales Service: We Provide Professional After-Sales Service. If You Have Any Questions Or Suggestions About Children's Swimsuits, Please Feel Free To Contact Us And We Will Answer Them Wholeheartedly.

Convenient Putting On And Taking Off Design: The Swimsuit Is Equipped With Excellent Durable Zipper, Which Helps Children To Put On And Take Off Easily, Conveniently And Quickly, Saving Precious Time For Parents And Children.

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#TOP 2

Ewbob Girls One Piece Quick Dry Swimsuit

Ewbob

1purple

9-10 Years

Ewbob Girls One Piece Swimsuit Quick Dry Swimwear Swimming Costume Beach Bathing Suit for Kids(C3-005)-Purple-9-10Y

9.8

FTB Score

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The Ewbob Girls Swimsuit is crafted from high-quality materials, featuring 85% polyester and 15% elastane, ensuring durability and softness for flexible movement. It fits like a second skin, providing maximum comfort with wide straps and an ergonomic back cut for optimal support. Made from quick-drying, lightweight fabric, this swimsuit allows your child to transition from water to land effortlessly. Additionally, it offers SPF 30+ UV protection, making it perfect for sunny days at the beach or pool, safeguarding your little one while they enjoy their aquatic adventures.

What We Like

Comfortable second-skin fit

Quick-drying lightweight fabric

SPF 30+ UV protection

Durable and flexible materials

Fade-resistant colourful patterns

#TOP 3

Lancry One Piece Black Girls Swimming Costume Girls Swimsuit Quick Dry Stretchy Swimwear

Lancry

Lancry-NKOOHT04-250917

Black

10-11 Years

Lancry One Piece Black Girls Swimming Costume Girls Swimsuit Quick Dry Stretchy Swimwear for Kids Bathing Suit 4-14 Years (UK, Age, 10 Years, 11 Years, Regular, Black)

9.6

FTB Score

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Features

[ONE-PIECE] ：This Swimsuit Girls Features A One-Piece Design, Providing Enhanced Coverage And Excellent UV Protection. It Reduces Water Resistance, Increases Swimming Speed, And Is Easy To Put On And Take Off.

[PREMIUM COMFORT] ：This Girls Swimming Costume Is Made From High-Quality Nylon + Spandex Fabric For Softness And Stretch. The Breathable, Quick-Drying Fabric Ensures Maximum Comfort, Making It Perfect For All-Day Beach Or Pool Wear.

[SUPPORTIVE DESIGN] ：This Swimming Costume Girls Features Wide Shoulder Straps And A U-Shaped Back To Reduce Pressure On The Shoulders And Back, Providing Optimal Support And A Comfortable Fit For Active Children.

[SUMMER FUN] ：This Black Swimming Costume Girls Is Perfect For Swim Lessons, Beach Vacations, Or Pool Parties—a Must-Have For Summer Fun!

[FIT FOR GIRLS 4-14] ：This One Piece Girls Swimsuit Is Available In Sizes Suitable For Girls Ages 4 To 14. Please Refer To The Detailed Size Chart For The Perfect Fit. Machine Washable And Durable.

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#TOP 4

XiaoMoSha Swimming Costume Girls One Piece Bathing Suit

XiaoMoSha

Black

11-12 Years

XiaoMoSha Swimming Costume Girls One Piece Bathing Suit Cover

XiaoMoSha Swimming Costume Girls One Piece Bathing Suit with Adjustable Straps Color Contrast Trim for Teens Girls, 12-13 Years, Black

9.6

FTB Score

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Features

[Vibrant Colors] Available In Black Swimming Costume Girls Love, Dark Blue, Hot Pink, Green, Orange Flower, And Pink Leopard Patterns Offering Stylish Options For Girls Of All Ages From 6 To 16 Years. The Swimwear Is Not Easy To Fade After Wash

[Unique Comfort] Girls Swimming Costume Features Premium Stretch Fabric With Stitch Costume Design To Ensure A Snug Fit And Freedom Of Movement Ideal As Period Swimwear For Teens And Kids Swimming Costume Alike

[Versatile Ages & Sizes] Suitable For Girls Aged 6 Years Up To 16 Years, This One-Piece Swimsuit Is A Top Choice For Girls Vacation Outfits And Is Perfect For Beach Activities, Swimming Pool, Vacation, Holiday, Children's Day And Surf Party, Photo Shooting And Etc

[High-Quality Material] Swimming Suit For Girls Is Made From High-Quality Fabric, With Shell Of 82%Nylon+18%Elastane And Lining Of 90%Polyester+10%Elastane, Uses Soft And Lightweight Material That Keeps Your Child Comfortable During Poolside Fun Play

[Design] Shell Embroidered Contrast Trim, Removable Chest Pad And Adjustable Shoulder Straps At Back Provides Greater Support For Comfort And Security For All-Day Wear. Removable Pads For 10-16 Years Old, No Pads For The Rest Of The Age Group

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#TOP 5

LXEASYGO Girls One Piece Racerback Swimming Costume Kids Athletic Quick Dry Swimsuit Stretchy Swimwear

LXEASYGO

Black

13-14 Years

LXEASYGO Girls One Piece Racerback Swimming Costume Kids Athletic Quick Dry Swimsuit Stretchy Swimwear Cover

LXEASYGO Girls One Piece Racerback Swimming Costume Kids Athletic Quick Dry Swimsuit Stretchy Swimwear for Girls 5-14 Years (UK, Age, 13 Years, 14 Years, Regular, Black)

9.5

FTB Score

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Features

[Comfortable Breathable] This Kids Swimming Costume Is Made Of Nylon And Spandex,breathable And Quick Drying, Soft, Comfortable, Stretchy, Ensuring All-Day Comfort

[Kids Swimwear] Wide Shoulder Straps Relieve The Pressure On The Shoulder And Back, Stylish And Unique Cutout Design On The Back, Make It More Comfortable To Wear

[Suitable For All Occasions] Suitable For Swimming Training, Beach, Pool, But Also Suitable For Home Swimming Pool Parties, Outdoor Beaches

[Size] These Girls Swimsuit Fit For Girls Ages 5 -14, It Is Very Easy To Wear Due To The Excellent Elasticity

[Privacy Protection] Full Hip Coverage And Design, Non-See-Through ,protects Girl's Privacy

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#TOP 6

Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit

Xumplo

Bigg-2pc purple swimsuit

Purple

10-12 Years

Xumplo Girls Swimming Costume Tween Girl One Piece Swimsuit Cover

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

9.5

FTB Score

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Features

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

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

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

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

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 12-13 Years

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#TOP 7

Lancry Swimming Costume for Boys Girls

Lancry

Lancry-NKOOHT04-2503261643

Pink

12-14 Years

Lancry Swimming Costume for Boys Girls Cover

Lancry Swimming Costume for Boys Girls, One-Piece Kids Swimsuit, Short Sleeve Swimming Costume 6-14 Swimsuit Girls (UK, Age, 12 Years, 14 Years, Regular, Pink)

9.5

FTB Score

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Features

[HIGH-QUALITY FABRIC] ：This Girls Swimming Costume Is Made Of 85% Polyester+15% Spandex. It Is Comfortable And Skin-Friendly, Quick-Drying And Refreshing, Stretchy And Durable, And Can Also Protect Children's Delicate Skin From Harmful Ultraviolet Rays.

[TIP] ：3XL And 4XL Sizes Have Removable Padding In The Chest Area.

[WASHING CARE] ：This One Piece Black Girls Swimsuit Is Best Washed By Hand, And The Washing Temperature Does Not Exceed 30℃.

[SUITABLE FOR CHILDREN AGED 6-15] ：This Swimsuit Girls Comes With A Detailed Size Chart. It Is Recommended To Make An Accurate Selection Based On The Child's Actual Height, Size And Weight To Ensure A Perfect Fit And Comfortable Wearing.

[ENJOY WATER FUN] ：This Kids Swimming Costume Is Perfect For Swimming, Beach Trips, Surfing Or Pool Games, While Protecting Your Child's Safety, It Also Provides Space For Free Movement.

[EASY TO PUT ON AND TAKE OFF] ：This Boys Swimming Costume Is A One-Piece Design With A Zipper To Help Children Put On And Take Off Easily, Conveniently And Quickly.Make Sure Your Child Is Comfortable Throughout The Day.

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#TOP 8

Atorcher Swimming Costume for Girls One Piece Swimsuit Rash Gurad Swimsuits Long Sleeve Swimwear Bathing Suit High Neck Swimwear

Atorcher

XM004-303

Rose Mermaid

9-10 Years

Atorcher Swimming Costume for Girls One Piece Swimsuit Rash Gurad Swimsuits Long Sleeve Swimwear Bathing Suit High Neck Swimwear Cover

Atorcher Swimming Costume for Girls One Piece Swimsuit Rash Gurad Swimsuits Long Sleeve Swimwear Bathing Suit High Neck Swimwear (UK, Age, 9 Years, 10 Years, Regular, Rose Mermaid)

9.5

FTB Score

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Features

[Design] High Neck And Long Sleeve Design Add Coverange For Your Girl. Double Seams On The Neckline And Inside Of The Thighs To Increase The Firmness Of The Swimsuit.

[Material] Swimming Suits For Girls Are Made Of 88% Polyester And 12% Elastane Whice Is Soft, Lightweight And Quick Drying. Toddler Girls Swimsuit Is Very Comfortable And Breathable To Wear In Long Day During Swimming.

[Occasion] Our One Piece Swimsuit Is Suitable For Beach Play Wear, Swimming Pool, Play Dates, Vacations, Hot Springs, Spa. Little Girl's Swimsuit Is Ideal Gift For Summer.

[Easy ON/OFF] The One-Piece Swimming Costume Features A Anti-Pinch Zipper On The Front Of The Girls Swimsuit, Easy To Put On And Off. The Zipper Is Smooth And Not Easy To Deform

[Bright Pattern] The Swimming Costume Girls Comes In 3D Digital Print Unicorn Pattern Which Is Not Easy To Fade. And The Color Is Bright. Put Ont This Swimsuit, Your Girl Will Be Eye-Catching.

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#TOP 9

ARENA Dynamo Junior R Girl's One-Piece Swimsuit

ARENA

006494

Navy

8-9 Years

ARENA Dynamo Junior R Girl's One-Piece Swimsuit Cover

ARENA Dynamo Junior R Girl's One-Piece Swimsuit, Sports Swimsuit in Chlorine and Salt Resistant Maxfit ECO-Fabric with UPF 50+ UV Protection Navy

9.3

FTB Score

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Features

Arena MAXFIT ECO-FABRIC: Arena's Quick-Drying, 4-Way Stretch MaxFit ECO-FABRIC Is Chlorine And Salt Resistant; UPF 50+ UV Protection, The Right Balance Between Fit And Comfort; Made Of Recycled Polyamide

SPORTY SWIMSUIT: The Arena Dynamo Junior Girls' Sports One-Piece Swimming Suit Is A Comfortable And Durable Swimsuit Made Of Arena MaxFit ECO-FABRIC, Which Ensures Maximum Comfort And Fit

SWIMMING POOL AND BEACH SWIMSUIT: The Arena Dynamo Junior Girls' Swimming Suit Is Suitable For Both The Pool And The Sea, Designed For Young, Casual Swimmers Who Want To Train In Comfort

COMPOSITION: Girls' Swimsuit Made Of 80% Polyamide And 20% Elastane (environmentally Friendly Fabric: 100% Polyamide Is Recycled); Skin-Friendly Fabric With STANDARD 100 Certification By OEKO-TEX

COMFORTABLE: The Soft Fabric 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 Fit

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#TOP 10

Xumplo Swimming Costume Girls One Piece Long Sleeve Swimsuits Teens Color Block Zipper Swimwear Kids Bathing Suit 9-10 Years

Xumplo

Black and Purple

9-10 Years

Xumplo Swimming Costume Girls One Piece Long Sleeve Swimsuits Teens Color Block Zipper Swimwear Kids Bathing Suit 9-10 Years

9.3

FTB Score

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Features

Full Coverage: Long Sleeves And Round Neck Design For Extra Sun Protection In Summers. Stylish Cut-Out Enhances Airflow To Prevent Overheating

Durable Fabric: Our Girls Swimming Costume Is Made Of Polyester Fabric. Soft, Breathable And Lightweight. Sturdy Polyester Withstands Frequent Pool Chlorine Exposure

Washing Tips: Hand Washable And Machine Washable. To Keep Your Children's Swimsuit In Good Condition, We Recommend Washing It In A Gentle Way

Size Range: Fit For Girls Swimsuits 7-8 Years, Big Girls Bathing Suit 9-10 Years, Kids Swimming Costume 10-11 Years, Tween Girls Swimwear 11-12 Years

Multi-Activity Ready: Suitable For Shool Swimming Lessons, Beach Holidays, Water Sports, Pool Parties, Hot Springs And Other Occasions

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Editor's Notes

During our designer one-piece swimsuit for girls research, we found 166 designer one-piece swimsuit for girls products and shortlisted 10 quality products. We collected and analyzed 3,498 customer reviews through our big data system to write the designer one-piece swimsuits for girls list. We found that most customers choose designer one-piece swimsuits for girls with an average price of £20.00.

The designer one-piece swimsuits for girls are available for purchase. We have researched hundreds of brands and picked the top brands of designer one-piece swimsuits for girls, including Okdance, Ewbob, Lancry, XiaoMoSha, LXEASYGO.

Written by

John Zimmer

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.