Girls' White One-Piece Swimsuits

For casual pool days and beach play, pick a fashion one-piece with vibrant prints and a looser cut for comfort; Roxy styles with stretchy recycled fabrics are built for that kind of wear. Training and competition suits are snug for hydrodynamics and often use 80% nylon/20% spandex blends for durability and speed in the pool.

Sizing spans girls 4–20 with regular and plus options and some styles offer 1/2 sizes to fine-tune fit. Consider body geometry: full-back designs give extra coverage for active movement while high-leg or fashion cuts may sit higher and feel roomier.

Some styles provide UPF 50+ sun protection, especially select Roxy and ZeroXposur pieces, and rash-guard cuts add face and shoulder coverage. These options help reduce sun exposure from the fabric, though coverage varies by cut and sleeve length.

Competition and training suits are made for pool use; Dolfin training suits advertise chlorine resistance up to 200+ hours and commonly use 80% nylon/20% spandex blends for long-lasting stretch. Durable stitching and construction details like flatlock seams also help maintain fit and reduce wear from repeated chlorine exposure.

Adjustable straps let you customize fit while flatlock seams reduce chafe during long swims, and full-back or rash-guard styles add secure coverage for active play. If you want extras, reversible prints add versatility and some sets include cover-up skirts—ZeroXposur offers those in plus sizes.