At SwimHer, we do things differently — and that starts with sizing.
We know the struggle all too well: shopping for swimsuits should be fun, but for so many girls, it quickly turns into frustration. The standard girls' sizing stops short, adult suits feel too revealing or just don’t fit right, and plus-size options? Practically nonexistent — especially for tweens and teens.
That’s why we created our own size system. One that’s rooted in inclusion, age-appropriate design, and real bodies — not outdated industry standards.
Whether you're searching for plus-size girls swimwear or you simply need a modest, well-fitting suit for a growing girl who no longer fits into typical children's sizes, SwimHer has you covered. Literally.
Our Sizing Philosophy: Fit Comes First
SwimHer offers sizes 1 through 4, each one thoughtfully designed to span a unique range of body types and sizes:
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Size 1 roughly fits a girls’ 16/18 and women's 2/4
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Size 2 fits a women's 6/8
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Size 3 fits a women’s 10/12
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Size 4 fits a women’s 14/16, depending on the body type and fit /preference
We know that every girl is different — height, curves, proportions, stage of development — so we’ve created sizing that meets her where she’s at, instead of forcing her into a size that was never meant for her.
Not Sure What Size to Order? We’ve Got You.
Shopping online can be tricky, especially when you’re trying to find the right fit for a growing tween or teen. If you’re unsure which SwimHer size is best for your girl, don’t stress — we’re here to help!
All you have to do is:
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Send us a photo (totally optional)
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Or let us know what size she typically wears in other brands
And we’ll guide you to the best size based on our unique sizing chart. Our goal is to make swimsuit shopping feel easy, empowering, and judgment-free — the way it should be.
Because Every Girl Deserves to Feel Good in Her Suit
We design with one mission in mind: to make sure every girl feels confident, comfortable, and included — whether she’s at the pool, the beach, or just being her amazing self.
From our extended size ranges to our age-appropriate styles, SwimHer is redefining what girls' swimwear should look and feel like.
So go ahead — find her perfect fit. Because she deserves to feel great in her skin, and in her swimsuit.
