Shifting Gaia

The Teen Period. Bikini in FlowStretch™ For Heavy Flows

The Teen Period. Bikini in FlowStretch™ For Heavy Flows - Main image
$21.6 $36 In stock

Category: Bikini Period

The Teen Period. Bikini in FlowStretch™ is built for heavy flow days, because those days deserve underwear that actually keeps up. Cut in a bikini silhouette sized for teens, it's made from FlowStretch™, a stretchy nylon knit that moves with your body without bunching or pulling. The gusset is lined with organic cotton, and the leak-resistant layer uses polyester PUL to keep things secure from first wear to last. No toxins used, full ingredient transparency throughout.

  • Absorbs up to 9 tampons worth of flow, with no wetness and no mid-day anxiety about leaks.
  • FlowStretch™ nylon fabric stretches and recovers with movement, so it fits like a second skin through long school days, sports, or sleep.
  • Organic cotton gusset sits directly against skin for breathable, non-irritating comfort where it matters most.

Available in black in sizes M and L, this bikini period underwear replaces disposables for heavy flow days without any compromise on fit or confidence. If you wear a petite women's XS, a Teen Large will work for you too.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Leo ★★★★★

I was nervous about leaks during gym class, but this bikini style held everything securely without any bunching or irritation. The FlowStretch fabric is incredibly soft and moved with me all day, making heavy flow days feel totally manageable.

Elizabeth G. ★★★★★

Finally, a period bikini that doesn't feel like a diaper but actually holds up on my heaviest day at school. The FlowStretch fabric is way more comfortable than I expected, and the fit stays put without bunching up.

David ★★★★★

My daughter actually wore these on her heaviest day and there was zero leakage overnight, which never happens. The bikini cut fits her without riding up and the FlowStretch fabric feels like regular underwear, not a diaper.