Children’s One Piece Swimsuits

Whether you're shopping for a toddler one-piece swimsuit or a kids one-piece swimsuit for your growing beach babe, each suit is designed to move, stretch, and splash right alongside them. Every Caden Lane one-piece features UPF 50+ protection and the kind of flattering, functional fit that makes water days worry-free and full of smiles.

From timeless solids to standout prints, our girls one-piece swimsuits come in a range of adorable styles — including ruffle straps, bow backs, and zipper fronts for easy on/off. Whether you prefer a minimal look or a statement piece, you’ll find a one-piece swimsuit for girls that checks every box. Prefer a two-piece? Check out our matching Children’s Bikinis — the same sun-safe comfort, with a playful twist.

Why parents (and littles!) love our children’s one-piece swimsuits:

• Sun-smart UPF 50+ protection built into every suit
• Tag-free, soft-stretch lining for all-day comfort
• Easy to coordinate with siblings or Mommy and Me Swimsuits
• Available in sizes from baby to big kid
• Designed with practical details and full-coverage confidence

Mix and match with our swimming accessories or complete her cozy post-swim outfit with a plush robe. Whether it’s a spontaneous splash session or a tropical getaway, these one-piece swimsuits for girls bring the sunshine.