Shop Girls' Swimsuits for Every Age & Activity
From toddler bathing suits to tween swimwear, SwimOutlet has the largest online selection of girls' swimsuits at the best prices. Whether she's on the swim team, heading to the beach, or splashing at the pool, find the perfect fit from trusted brands like Speedo, TYR, Nike, Kanu Surf, and more.
One Piece Swimsuits: Our girls' one piece swimsuits range from competition-ready practice suits to fun fashion styles. Look for chlorine-resistant fabrics for swim team and durable UPF 50+ sun protective options for all-day outdoor play.
Two Piece & Bikinis: Find girls' bikini sets, tankini tops with matching swim bottoms, and mix-and-match separates. Our two piece swimsuits come in sizes from toddler through teen, with age-appropriate coverage and adjustable straps for a growing fit.
Swim Team & Competition: Training suits, practice swimsuits, and grab bags built to last through daily practices. Shop by brand, size, or team color coordination.
Rash Guards & Sun Protection: Keep her safe with long sleeve rash guards and UPF 50+ swimwear that blocks harmful UV rays without sacrificing style.
We carry girls' swimwear in sizes 2T through junior, including hard-to-find extended and plus sizes. Enjoy free shipping on orders over $49 and our Price Match Guarantee on every swimsuit.
How do I choose between a one piece and two piece swimsuit for my daughter?
One piece swimsuits offer the most coverage and stay in place during active swimming — ideal for swim lessons, water parks, and younger girls. Two piece swimsuits (bikinis and tankinis) are popular for beach days, pool lounging, and older girls who prefer mixing and matching styles. Tankinis provide a good middle ground, offering the convenience of a two piece with more torso coverage. Consider the primary activity and your daughter's comfort level.
What are the best swimsuits for tween girls?
For tweens (ages 9–13), look for age-appropriate styles that balance fashion with comfort. Popular choices include sporty one pieces with fun prints, high-neck bikini tops with full-coverage bottoms, and tankini sets. Many tweens prefer swim separates so they can mix sizes between tops and bottoms as their bodies change. Brands like Hurley, O'Neill, and Billabong are popular for trendy tween swim styles.
What girls' swimsuit brands does SwimOutlet carry?
SwimOutlet carries all major girls' swimwear brands including Speedo, TYR, Nike Swim, Arena, Kanu Surf, Sporti, Dolfin, Tidepools, and many more. We offer both competitive swim brands for training and practice, and fashion swim brands for beach and casual wear — all at competitive prices backed by our Price Match Guarantee.
What is the best swimsuit material for girls who swim a lot?
For frequent pool use, choose swimsuits made from polyester-based fabrics (like Sporti Poly or TYR Durafast Elite), which resist chlorine breakdown much better than standard nylon/spandex. These suits can last an entire swim season or longer. For occasional beach and pool use, nylon/spandex blends offer a softer feel and vibrant prints but will fade faster with regular chlorine exposure.
What size girls' swimsuit should I buy?
Girls' swimsuit sizing typically follows standard clothing sizes (2T, 3T, 4T for toddlers; 4–16 for big girls; and junior/teen sizes). For swim team and competition suits, it's common to size down one size for a performance fit since the fabric stretches over time. For fashion and casual swimwear, go with her regular clothing size. Always check the brand's specific size chart on the product page, as sizing varies between manufacturers.
