Shifting Gaia

Tweenie Bikini

Tweenie Bikini - Main image
$21.7 $35 In stock

Category: Period Underwear

The Tweenie Bikini period underwear from Tampon Tribe is built for medium to heavy flow days, with a hip-sitting, full-coverage cut that stays comfortable through real movement. Four layers of moisture-wicking organic cotton and modal fabric work together with SilverClear antimicrobial treatment to manage leaks and odor without synthetic fragrances or harsh chemicals.

  • Medium to heavy absorbency across four moisture-wicking layers, so you can move through your day with confidence and less worry about leaks.
  • SilverClear antimicrobial and anti-odor treatment is EPA-listed and described as non-toxic and chemical-free, keeping protection clean without compromising ingredient transparency.
  • Standard 100 Oeko-Tex certified, free from PFAs, chlorine, and added perfumes, so every layer touching your skin has been tested for harmful substances.

If you are looking for period underwear that pairs genuine absorbency with cleaner materials, the Tweenie Bikini delivers full-coverage reliability in a cut designed to fit and feel good from the first wear.

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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 (4.8 / 5 · 5 reviews)

Hazel ★★★★★

I was nervous about leaks on heavy days, but the hip-sitting fit stayed put during my yoga class and I didn't have to change. The full-coverage cut is actually comfortable for real movement, not just sitting still.

Steven D. ★★★★★

The four-layer protection held up through a full workday and a bike ride home without a single leak, which is exactly what I needed. The hip-sitting cut stays put when I move, no riding up or bunching. I’ve already ordered two more pairs.

Michael F. ★★★★★

I was honestly surprised how well the four layers handled my heaviest day without any leaks or bunching. The hip-sitting cut stays put through a full work day, which is exactly what I needed.