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Customizable Absorbency

BOOST Boxer

BOOST Boxer

$52.00
$52.00
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Buy 5 Get 2 Free With Code: 2FREEFORME
Size
Color: Black
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Includes one removable Booster that let's you increase the absorbency on heavy flow days, or dial it back for light flow days. 

Details

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

Absorbency

Holds 8+ tampons worth with our booster. Surf that crimson wave.

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.

  • Made with TENCEL & organic cotton
  • Machine wash & dry safe
  • Replaces 100+ disposable products
View full details

Boost the Absorbency

Each pair of Aisle Boost underwear comes with a removable absorbency booster that adds an extra 4 tampons of absorbency. It's an innovation that sets these period underwear apart from the rest.

For heavy flow-ers there's no need to change your undies part way through the day, just tuck a Booster in and swap it out as needed.

Made with TENCEL™

The fiber that powers our period underwear. One of the most sustainable materials in the world - TENCEL™ Lyocell - is biodegradeable, highly breathable, less susceptible to odour-causing bacterial growth, and absorbs 50% more than cotton.

Our Tech

Featuring Truetex™ Fabric Technology

We developed our own custom blend of materials to create a gusset that's moisture wicking, super absorbent & leakproof without the use of harmful chemical finishes. Our undies keep absorbing, wash after wash after wash.

Learn More

FAQ

How do your period undies work?

Aisle undies feature a specially engineered lining that combines super-absorbent Truetex™ technology with a leak-proof lining to keep you dry and feelin’ fly.

How much fluid do they hold?

8X as much as a standard disposable! Our undies absorb 4 tampons worth of fluid on their own, or 8 tampons worth when you wear with the included booster.

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?

It’s not that complicated - our undies were made to fit into your regular laundry routine. Just rinse out in cool water, then wash and dry with your regular laundry. As with any garment, wash with like colors.

Real reviews from real people

Write a Review
average rating 4.5 out of 5
Based on 853 reviews
  • 5 Stars
    579 Reviews
  • 4 Stars
    153 Reviews
  • 3 Stars
    75 Reviews
  • 2 Stars
    26 Reviews
  • 1 Star
    20 Reviews
88% 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
Customer photos and videos
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853 Reviews
Reviewed by madeline
Verified Reviewer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'3
Size
L
Rated 5 out of 5
Review posted

the best period undies EVERRRR

i’ve been using aisle underwear for quite some time now and recently purchased a few pairs of the boxers — these things are incredible. i’ve never been so comfy on my period in my life! i love that i don’t have to worry about leaking on the sides. i also wore these out of the house as shorts, and there’s nothing better than underwear in disguise as cute biker shorts.

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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 Divya J.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Rated 5 out of 5
Review posted

Review

Review

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Absorbency
Rated 3 out of 5
Comfort
Rated 4 out of 5
Fit
Rated 1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Was this helpful?
Reviewed by Kaitlin
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'4
Size
L
Rated 5 out of 5
Review posted

Better than Thinx

I love these Boxers, they are long enough to cover all the curves and I love the boost liner and how easy it is to remove and put in. Makes it easy to clean. I might’ve liked a little higher rise but it is still comfortable. I still have some rolling on inner thoughts but I think that’s more due to body shape. I feel like I don’t have to mess with these as much as the boy shorts I had from Thinx.

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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
Was this helpful?
Reviewed by Jenessa A.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'9
Hip
41" - 42"
Size
M
Rated 5 out of 5
Review posted

Nice

I probably could, but wouldn’t wear them to work. But they’re nice for sleeping, or working from home. I wear them with the extra liner and then take it out after a while and use the underwear alone. My only problem with them is that the liner is made of polyester, ew.

I got M and L because i was worried about the band being tight, but both are fine and comfy.

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Absorbency
Rated 3 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
Was this helpful?
Reviewed by Leah
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

these are the most amazing thing ever they completely changed my periods! they arw super comfortable and the pocket for a pad is amazing. i have super heavy periods and there’s absolutely no leaking even overnight. i was cautious about buying because theyre a little on the expensive side but they are worth every dollar and i will wear them even when not on my period

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