Rated 4.5 out of 5
Based on 270 reviews

BOOST Bikini

$46.00 Buy 3+ & Save Up to 15%
Black
Black
Black
Black
Green
Green
Green
Green
Beet
Beet
Beet
Beet
black-cropped
BOOST Bikini
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beet-cropped
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green-hover
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Rated 4.5 out of 5
Based on 270 reviews

BOOST Bikini

$46.00 Buy 3+ & Save Up to 15%
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Our lowest rise style with bold statement waistband. Wear to replace or back up single-use period products.

Details

Includes a bonus absorbency booster for heavy days. Tuck ends into pockets & bleed on.

Absorbency

Holds 8+ tampons worth with our booster. Let the crimson wave flow.

Materials

Body: 48% TENCEL™ lyocell, 48% organic cotton, 4% spandex
Gusset: 90% Truetex™ (88% recycled polyester, 12% organic cotton), 10% TPU
Lining: 86% recycled polyester, 14% organic cotton
Booster: ​65% recycled polyester, 24% polyester, 11% hemp

All materials are OEKTO-TEX certified and lab tested for PFAS. No detectable levels of PFAS to 1 part per million.

FAQ

How do your period undies work?

Our specially engineered lining combines super-absorbent Truetex™ technology with a leak-proof lining that absorb 4 tampons worth of fluid. Use the removable booster for an additional 4 tampons of absorbency.

Do Aisle undies contain PFAS?

No detectable levels of PFAS have been found in our underwear, based on a detectable limit of one part per million.

FAQ Image

Do I need to wear a pad or tampon with them?

Nope! Our undies were built to completely replace pads and tampons. They make great backup protection with tampons or menstrual cups, too.

What does the booster do?

Our undies absorb 4 tampons worth of fluid on their own, but if you need a little extra you can add the optional booster for an extra 4 tampons worth. Just tuck the ends into the slits at either end of the gusset.

How do I wash my Aisle undies?

Our undies were made to fit into your regular laundry routine. Just rinse the gusset in cool water before washing in the machine with your regular laundry. Hang to dry where possible - it saves energy and prolongs the life of your undies!

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Real folks, real reviews

Rated 4.5 out of 5
Based on 270 reviews
average rating 4.5 out of 5
Based on 270 reviews
  • 5 Stars
    187 Reviews
  • 4 Stars
    55 Reviews
  • 3 Stars
    15 Reviews
  • 2 Stars
    7 Reviews
  • 1 Star
    6 Reviews
93% of reviewers would recommend this product to a friend
Absorbency
Rated 4 out of 5
Comfort
Rated 4 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
270 Reviews
Reviewed by Amber M.
Verified Buyer
BOOST Bikini
Reviewing
BOOST Bikini
I recommend this product
Flow
Moderate
Rated 5 out of 5
Review posted

Stylish yet functional

It is amazing! It looks good, but also absorbs what it needs to!! This is such a great product!!

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Absorbency
Rated 5 out of 5
Comfort
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
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Reviewed by Liz
BOOST Bikini
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BOOST Bikini
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

This was my favorite style-wise of all of the underwear I bought. But, the one downside was that the boost insert that was with them was too large to fit laying flat inside the gusset pouch, which was kind of annoying. I didn't need to use them, fortunately, but it's something to be aware of if that type of uneven texture would be something of concern for you, too. Other than that, these were amazing, I used them with a menstrual cup and I felt completely secure all day!

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Reviewed by Heather J.
Verified Buyer
BOOST Bikini
Reviewing
BOOST Bikini
I recommend this product
Flow
Light
Height
5'4
Hip
37" - 38"
Size
S
Rated 4 out of 5
Review posted

Comfortable!

These are soooo much more comfortable and breathable than the BASE bikini. I like that there's an insert I can remove on lighter days. The elastic digs in a bit on my butt, but not more than most underwear. Since they're comfy and do the job, these are now my go-to period underwear.

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Absorbency
Rated 5 out of 5
Comfort
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
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Reviewed by Amy
BOOST Bikini
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BOOST Bikini
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Perfect fit. Love that you can add to it for extra absorption.

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Reviewed by Amy
BOOST Bikini
Reviewing
BOOST Bikini
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

I now prefer the fit and style of these underwear over the Thinx brand. The others have changed their sizing over the past few years and they don’t quite fit right. I also prefer the cloth of these underwear and their booster cloth pads.

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