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The One | Period Swimsuit For Teens
The One | Period Swimsuit For Teens
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Dive in with confidence with The One, our ultimate one-piece black leakproof period swimsuit.
Sleek, discrete with coverage where it matters, the timeless crossback design of The One will make this your go-to swimsuit every time. It looks like a 'normal' swimsuit but there's no need for tampons or pads, because the 'magical' absorbent gusset wicks period blood away and locks it in.
It's time to stop sitting poolside when you're on your period. Jump in and make a splash with The One.
Both our models are wearing a size Small. They would normally wear a Youth 12 -14 or Small Adult.
Choose your normal size. Period swimwear works best when the fit is snug so if you are between sizes, we'd recommend sizing down.
Size guide: Y12-14: Small (S) I Y14-16 Small or Medium (S) or (M) I Y16-18 Medium (M)
Designed in Aotearoa, New Zealand.
Absorbency: 25ml

✔️ Not treated with PFAS ✔️ Quick-dry, thin gusset technology ✔️ Machine washable
*T&Cs apply. While Stocks Last.
How Do They Work?
Hidden inside The One swimsuit is clever technology to let you swim with confidence when you’re on your period.
The One swimsuit contains multiple built-in layers designed to absorb menstrual blood while keeping water out. The top layer of the gusset will wick moisture away from the body and into the absorbent core which is designed to lock it in. A waterproof outer layer then prevents anything from leaking out.
The One Swimsuit is designed for a light to medium flow.
Care Guide
Wash your Hello Swimwear before first use to activate the absorbent technology. After each wear, rinse in cold water until water runs clean and then machine wash in <30 degrees using a mild detergent. Line dry inside out. Do not use fabric softener.
Composition
Main body: 240gsm 80% Nylon+ 20% Spandex(Waterproof)
Lining: 190gsm 82% Polyester+18% Nylon(Waterproof)
Gusset: Top layer: 100% Polyester; Middle: 280gsm 88% polyester+12% Nylon; Leakproof layer: Breathable TPU
OEKO-TEX® STANDARD 100 certified products have been laboratory tested with strict scientific standards to protect your health.
Designed with love in Aotearoa, New Zealand and made responsibly in China.
I was so happy with this swimwear! We got it just in time for a holiday, and it was such a relief to know she didn’t have to miss out and didn't have to worry about inserting anything which I know she wouldn't do. The design is really flattering and age-appropriate, she now just wears them as her regular togs because you can’t even tell they’re period swimwear. She loves them, and I’m so grateful you created something she can wear confidently and comfortably all the time. Totally worth it!
Thanks Arna! We are super stoked with The One and spent a lot of time getting the design and cut just right. So happy to hear that your daughter loves it x
These are seriously amazing. I was invited to be part of the test group and they get a big tick from me. I actually wore them pretty much all summer even when I wasn't on my period. They are good quality and felt really secure. Sizing is true to size which was good too as other brands I've tried have run small. Will be recommending to anyone looking for good quality period swimwear.
These are seriously amazing. I was invited to be part of the test group and they get a big tick from me. I actually wore them pretty much all summer even when I wasn't on my period. They are good quality and felt really secure. Sizing is true to size which was good too as other brands I've tried have run small. Will be recommending to anyone looking for good quality period swimwear.
These are seriously amazing. I was invited to be part of the test group and they get a big tick from me. I actually wore them pretty much all summer even when I wasn't on my period. They are good quality and felt really secure. Sizing is true to size which was good too as other brands I've tried have run small. Will be recommending to anyone looking for good quality period swimwear.
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The One | Period ...
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