Best 6 Girls Athletic One Piece Swimsuits in 2026

Sporty back style keeps straps in place

Durable fabric provides superior chlorine resistance

Silicone grippers at leg Openings prevent suit from riding up

【TANKINI SWIMSUITS FOR WOMEN】: Swim tank top + sports bra + boyshort. Trendy 3 piece bathing suit offers you a playful range of combination, such as modest tankini swimsuits built-in padded bra or only one piece swim bikini top matches with tankini short.

【ATHLETIC SWIMSUITS FOR WOMEN】: Dark blue scoop neck Tankini top will perfectly cover your stomach, show the curve and fashional sporty style. With athletic three pieces you can choose if you want to show your belly or not.

【WOMEN'S SWIMWEAR】: Casual tankini set is made of great quality fabric. 85% Polyester, 15% Spandex, very soft and quick-drying to wear and easy to clean.

PERFORMANCE DESIGN: Perfect for training, racing, and recreation, TYR's Diamondfit one piece girl swimsuit is ideal for athletes who want reliable coverage during every swim.

TYRECO FABRIC: Made of 80% recycled nylon (requiring less energy to produce) and 20% Lycra XTRA LIFE fiber — resists damage from chlorine and lotions up to 10 times longer than swimsuits made with unprotected spandex.

CLASSIC FIT: TYR's Diamondfit swimsuit design features sleek, flexible straps, a medium neckline, keyhole back, and a moderately cut leg.

Material: The tummy control bathing suit for women teen girls is made of 80% Nylon + 20% Elastane with quick-drying fabric and adopts professional stitching technology, making the swimsuits more durable, elastic and comfortable. Meanwhile, it is easy to care with good impact strength, high elastic recovery and soft hand feel. Quick-drying fabric can stay fresh at all times, let you enjoy the good times of the holiday.

Tummy Control Design: The one piece maternity swimsuit features retro style with plenty gathered ruched design on the front from waist hides belly flaws, creating a slimming effect, flattering and slimming look. It is a really soft plus size swimwear fit for all the stature and very comfortable to wear and swim in. Promises a flattering for your holiday trip this year!

V Neckline & Adjustable Strap: Unlike most other bathing suit, this one piece plus size swimwear features with V neckline and full coverage design, giving full coverage to your body while still looks stylish. With adjustable shoulder strap so that you can accordingly adjust the length to fit your stature properly. And the strap is not narrow, it is not easy to slip off, ensuring maximum comfort while doing any water activities.

Engineered from our exclusive, longest lasting and best-selling Endurance+ fabric

100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics.Fabric: 50% Polyester/50% PBT

Four-Way Stretch technology providing a body-hugging fit, great shape retention and soft comfort

Material: The tummy control bathing suit for women teen girls is made of 80% Nylon + 20% Elastane with quick-drying fabric and adopts professional stitching technology, making the swimsuits more durable, elastic and comfortable. Meanwhile, it is easy to care with good impact strength, high elastic recovery and soft hand feel. Quick-drying fabric can stay fresh at all times, let you enjoy the good times of the holiday.

Tummy Control Design: The one piece maternity swimsuit features retro style with plenty gathered ruched design on the front from waist hides belly flaws, creating a slimming effect, flattering and slimming look. It is a really soft plus size swimwear fit for all the stature and very comfortable to wear and swim in. Promises a flattering for your holiday trip this year!

V Neckline & Adjustable Strap: Unlike most other bathing suit, this one piece plus size swimwear features with V neckline and full coverage design, giving full coverage to your body while still looks stylish. With adjustable shoulder strap so that you can accordingly adjust the length to fit your stature properly. And the strap is not narrow, it is not easy to slip off, ensuring maximum comfort while doing any water activities.

Material: The tummy control bathing suit for women teen girls is made of 80% Nylon + 20% Elastane with quick-drying fabric and adopts professional stitching technology, making the swimsuits more durable, elastic and comfortable. Meanwhile, it is easy to care with good impact strength, high elastic recovery and soft hand feel. Quick-drying fabric can stay fresh at all times, let you enjoy the good times of the holiday.

Tummy Control Design: The one piece maternity swimsuit features retro style with plenty gathered ruched design on the front from waist hides belly flaws, creating a slimming effect, flattering and slimming look. It is a really soft plus size swimwear fit for all the stature and very comfortable to wear and swim in. Promises a flattering for your holiday trip this year!

V Neckline & Adjustable Strap: Unlike most other bathing suit, this one piece plus size swimwear features with V neckline and full coverage design, giving full coverage to your body while still looks stylish. With adjustable shoulder strap so that you can accordingly adjust the length to fit your stature properly. And the strap is not narrow, it is not easy to slip off, ensuring maximum comfort while doing any water activities.

80% Polyester, 20% Lycra Spandex

Stripes create channeling effect to streamline water away from the body

Chlorine resistant

80% Polyester, 20% Lycra Spandex

Stripes create channeling effect to streamline water away from the body

Chlorine resistant

Package length:12.192 cm

Package width:20.32 cm

Package height:4.318 cm

Fabric : 80% Nylon, 20% Xtra Life Lycra, Lining : 90% Polyester, 10% Spandex.

Extra life lycra fabric with the improved long-lasting fit and lasts 5-10 times longer than ordinary Spandex. Super-strong flat-lock stitching.

Provides exceptional chlorine resistance. Improved comfort with a softer feel and superior shape retention.

Fabric : 80% Nylon, 20% Xtra Life Lycra, Lining : 90% Polyester, 10% Spandex.

Extra life lycra fabric with the improved long-lasting fit and lasts 5-10 times longer than ordinary Spandex. Super-strong flat-lock stitching.

Provides exceptional chlorine resistance. Improved comfort with a softer feel and superior shape retention.

Black sports athletic one-piece swimsuits feature a racerback and wide shoulder straps, along with a soft wire-free padded bra for excellent support and shape.

Sporty and sexy design with criss cross straps at the back, underbust elasticated seam. This tummy control one piece swimsuit is easy to put on and save wearing tie-in problems.

This active swimsuit for women is made of high-quality soft material with excellent elasticity for a perfect fit. It is skin-friendly, breathable, comfortable, and easy to clean and stain-resistant.

Plus Size One Piece Swimsuit: Full coverage bathing suits with color block design are trendy and comfortable. Plus size athletic swimsuits with premium material is your best choice for water sports.

Plus size tummy control bathing suits: Splicing wide shoulder straps and vivid colors provide a slimming look, make you more flattering in water. Mint Green swimsuit with U neck and keyhole on the back provide moderate coverage.

Athletic Swimsuits for Women: Built in bra, criss cross racerback and girl leg designs feature a larger range of movement when swimming, training, water aerobics, surfing, diving, underwater working and other activities.

Engineered from our exclusive, longest lasting and best-selling Endurance+ fabric

100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics

Four-Way Stretch technology providing a body-hugging fit, great shape retention and soft comfort

PERFORMANCE DESIGN: Perfect for training, racing, and recreation, TYR's Diamondfit one piece girl swimsuit is ideal for athletes who want reliable coverage during every swim.

TYRECO FABRIC: Made of 80% recycled nylon (requiring less energy to produce) and 20% Lycra XTRA LIFE fiber — resists damage from chlorine and lotions up to 10 times longer than swimsuits made with unprotected spandex.

CLASSIC FIT: TYR's Diamondfit swimsuit design features sleek, flexible straps, a medium neckline, keyhole back, and a moderately cut leg.

PERFORMANCE DESIGN: Perfect for training, racing, and recreation, TYR's Diamondfit one piece girl swimsuit is ideal for athletes who want reliable coverage during every swim.

TYRECO FABRIC: Made of 80% recycled nylon (requiring less energy to produce) and 20% Lycra XTRA LIFE fiber — resists damage from chlorine and lotions up to 10 times longer than swimsuits made with unprotected spandex.

CLASSIC FIT: TYR's Diamondfit swimsuit design features sleek, flexible straps, a medium neckline, keyhole back, and a moderately cut leg.

Our longest-lasting and best-selling endurance+ fabric is ultra-chlorine resistant and designed to last 20 times longer than conventional swimwear fabrics

Four-way stretch technology providing a body-hugging fit, great shape retention and soft comfort

Lightweight and quick drying - resists sagging, bagging, fading and snagging

The one piece bathing suit is made of 80% polyamide, 20% spandex in its shell and 90% polyester, 10% spandex. The poly spandex suit feels different as its polyester, easy putting on and taking off, stretches. The one piece swimsuit lasts a long time and is resistant to chlorine. The swimwear is thicker, as there are 3 layers of bathing suit material. the outer layer is slightly thicker, holds up well and will not fade and feel strong.

Removable pads are easy to slip out using the tiny slot if you don't like the pads. The practical bathing suit covers where you need it and it stays in place providing full coverage, no showing of your cleavage. Also the adjustable straps are easy to adjust offering back protection.

The conservative swimwear has great body coverage with the more modest leg opening, compressing the chest very well, a traditional practice suit. The functional bathing suit is a comfortable mom bathing suit without exposing too much.

80% Polyamide, 20% Elastane MaxFit suits are designed to deliver maximum comfort, range of motion, and chlorine resistance for the most demanding competitive swimmers

Maximum comfort, streamlined design lines, Maximum range of motion and zero distraction to keep you comfortable lap after lap

Maintains superior softness, durability, and performance all season

Durable, sleek and eco-friendly, the Girls’ TYReco Solid Maxfit Swimsuit is a triple threat.

Our one-of-a-kind TYReco textile, constructed from recycled fabric, requires less energy to produce, creating a lower level of CO2 pollution.

Featuring a medium neckline, thick/supportive straps, keyhole back and moderate cut leg, our Maxfit swimsuits are built for athletes who want fuller coverage during every swim.

Stretchy spandex material for comfort.

Racerback design for range of motion.

Colored straps and a Swoosh design trademark at the upper left chest add sporty style.

One of our best-selling backs features wide straps for ultimate support and comfort

Constructed with lycra Extra life fiber for 5-10x more durability than ordinary spandex fabrics

Provides resistance to suntan lotions, skin oils and chlorine better than conventional fabrics

SPEEDO Girls Aquablade Recordbreaker

- A go-to competition suit you can always count on for great comfort, fit, and performance.

- Stripes create channeling effect to streamline water away from the body.

【Material】 80% Polyester+20% Spandex,stretch fabric,stretchy soft, breathable and skin-friendly.

【Size】 Suitable for all girls from 3 to 14 years old. Pls turn to Detail size information in our size chart, Pls kindly measure your princess before ordering.

【Features】 sleeveless, simple and elegant,unique printing pattern,fantastic colors good quality and comfortable wear.