Best Girls' Athletic One-Piece Swimsuits Under $100 (2026)
We selected pieces under $100 from swim-focused brands and ranked them by a value score combining fabric performance, fit features, durability, and price
The Verdict
- Best Overall: Speedo girl’s swimsuit one-piece infinity splice — Great for chlorine-heavy use: chlorine-resistant fabric with UPF 50+ and an athletic one-piece cut
- Best Value: Speedo Girl's One-Piece Racerback Swimsuit — Ideal for active swimmers wanting a secure racerback fit and streamlined one-piece construction
This roundup highlights quality girls' athletic one-piece swimsuits under $100, focusing on durable fabrics, secure racerback fits, and sun and chlorine protection. Picks were chosen from popular swim-specific brands and ranked by a value score that weights material performance, fit features, and price
Top Picks
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1
Best Overall Speedo girl’s swimsuit one-piece infinity splice
Great for chlorine-heavy use: chlorine-resistant fabric with UPF 50+ and an athletic one-piece cut
A girl’s one-piece swimsuit made from recycled materials with chlorine resistance and UPF 50+. Fully lined for comfort; suitable for swim lessons and practice. Customers note fit and quality, with mixed durability and color fade experiences
- UPF 50+ protection
- chlorine resistant fabric
- recycled materials
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2
Best Value Speedo Girl's One-Piece Racerback Swimsuit
Ideal for active swimmers wanting a secure racerback fit and streamlined one-piece construction
Recycled fabric, chlorine resistant one-piece swimsuit with UPF 50+ protection. Comfortable for swim lessons and competitive swimming, with vibrant coral-like design
- chlorine resistance
- UPF 50+ protection
- vibrant design
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3
Speedo girls' one-piece swimsuit Infinity Splice thick strap
Good eco-conscious option: recycled-performance fabric with thick straps for durable, athletic support
A recycled fabric, chlorine-resistant girls' one-piece designed for comfort and durability in lessons and team practice. Customers cite fit and quality, with mixed views on durability and color fade
- UPF 50+ protection
- chlorine resistant
- recycled fabric
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4
Speedo Girl's Swimsuit One Piece Closed Racerback
Solid choice for lap swimming thanks to a closed racerback that keeps straps secure during movement
One-piece swimsuit for girls with racerback design. Made from part recycled materials, chlorie and pilling resistant, UPF 50+ and fully lined. Customers note solid quality, comfort, and vibrant coral-reel-like designs
- UPF 50+ sun protection
- chlorine resistant fabric
- fully lined for modesty and support
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5
Speedo girl’s swimsuit one piece closed racerback
Reliable athletic fit with chlorine-resistant fabric and a closed racerback for consistent performance
One-piece swimsuit for girls with racerback design. Made from part recycled materials, chlorine and pilling resistant, UPF 50+ protection, fully lined. Customers note solid quality, comfort, and vibrant coral-reef-like designs
- UPF 50+ protection
- chlorine resistant fabric
- fully lined
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6
Speedo girls one-piece closed racerback swimsuit
Practical everyday swim option offering a secure racerback design and straightforward athletic styling
One-piece swimsuit for girls with racerback. made from recycled materials, chlorine resistant, UPF 50+ protection, fully lined. Customers note comfortable fit and good appearance for swim lessons
- UPF 50+ protection
- recycled materials
- fully lined
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7
Speedo Girls One-Piece Swimsuit Closed Racerback
Budget-friendly athletic pick that delivers a classic racerback fit suited for lessons and casual laps
A recycled-fabric, chlorine-resistant girl’s one-piece swimsuit with UPF 50+ protection. Customers report true-to-size fit and comfortable support during practice
- chlorine resistant material
- UPF 50+ sun protection
- recycled fabric
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8
Speedo Girls Swimsuit One Piece
Durable choice with recycled fabric options and a one-piece design built for frequent pool use
One-piece swimsuit for girls with recycled fabric, chlorine resistance, and UPF 50+. Customers note good fit, comfort for long swim sessions, and mixed durability experiences
- chlorine resistant material
- UPF 50+ protection
- comfortable fit for hours of swimming
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9
Speedo girls' swimsuit one piece closed racerback
Performance-oriented option featuring chlorine-resistant fabric and a closed racerback for active use
One-piece speedo swimsuit for girls with recycled fabric, chlorine resistance, UPF 50+ protection, and pill resistance. Customers note solid quality, comfortable fit, and good for swim lessons and competition
- chlorine resistance
- UPF 50+ protection
- recycled fabric
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10
Speedo Girl's One-P Piece Swimsuit Racerback
Dependable racerback swimsuit that provides an athletic fit appropriate for swim practice and lessons
One-piece girls' swimsuit with UPF 50+ protection and chlorine-resistant fabric. Slim fit with secure racerback and durable material; noted for quality, comfort, and color variety by users
- UPF 50+ sun protection
- chlorine resistant fabric
- secure stay-put coverage