• Espresso
  • Espresso
  • Espresso
  • Espresso
1 25

Aisle

BOOST Boxer

BOOST Boxer

"I can wear them with no pad or tampon freely with no fear of leakage even on my heaviest days." ★★★★★

$52.00
$52.00
Sale Sold out
Size
Color: Espresso
Classic boxer brief with bold statement waistband & full-coverage leak protection.

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 786 reviews
  • 5 Stars
    546 Reviews
  • 4 Stars
    141 Reviews
  • 3 Stars
    60 Reviews
  • 2 Stars
    22 Reviews
  • 1 Star
    17 Reviews
90% 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
Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal
786 Reviews
Reviewed by Yvonne D.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'9
Size
L
Rated 5 out of 5
Review posted

Excellent fit and amazing absorption

I purchased these for my two daughters.

My oldest has been wearing them since she started her period at 10 (7 years ago) and they are all still in great shape.

This was the best investment ever.

Loading...
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 DEANNA O.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'4
Hip
41" - 42"
Size
M
Rated 5 out of 5
Review posted

Comfortable and Supportive

I purchased these boxers a few months back and they have been very comfortable and supportive during my periods. The higher waist band allows both my lower back and abdomen to feel "held" which imo has aided with more mild pcos cramping episodes. An extra liner came with my order which was a nice bonus. The boxer pad coverage extends high in the front and the back which provides peace of mind. As a diehard lover of all things high rise, I wouldnt mind seeing a boxer design that goes even an inch or two higher yet, although these are quite comfortable as is.

The night I decided to wear this was The Night of the Heavy Flow. I somehow managed to not move and bled only into one specific area of the pad. As I hadn't inserted the bonus liner beforehand (thank you period brain), I did end up leaking from the sides a little bit. With this in mind, I strongly feel that if the liner was inserted, I wouldnt have had any problems as it is quite absorbant. Overall, I have both peace of mind and comfort when wearing these!

For reference my waist is 28 inches, hips 41 inches, thigh 25 inches, and I purchased a M which fits perfectly.

Loading...
Absorbency
Rated 4 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 Joani V.
Verified Reviewer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Rated 5 out of 5
Review posted

THE BEST PERIOD UNDERWEAR

I LOVE LOVE these things. I have the boxers and the regular. I can wear them with no pad or tampon freely with no fear of leakage even on my heaviest days.

When it comes to cleaning, it's super simple. I like to rinse them out in the sink or shower and throw them in the wash right afterwards. I've never been so happy to not have to use pads

Loading...
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 Selah M.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'2
Hip
< 35"
Size
XS
Rated 5 out of 5
Review posted

Worked perfectly

I dont have a particularly heavy flow overall, but it tends to come in bursts that often regular pads cant suck up fast enough. This period underwear has been a life saver; it catches everything and sucks up fast.

I dont love having to do laundry every day (i only got two pairs for myself), but its worth the security of knowing I wont miss a pad or bleed through.

Loading...
Absorbency
Rated 4 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 Sabina P.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Rated 5 out of 5
Review posted

Amazing

My daughter convinced me to try these and I was very hesitant. My concerns were comfort and absorption.

These are incredibly comfortable and stay amazingly dry. I can make it through an entire shift at work with the boost pad, and it feels like a regular day. I just bought 3 more.

Customer service was amazing through e-mail and they solved my issue instantly. Stellar.

Loading...
Absorbency
Rated 5 out of 5
Comfort
Rated 5 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?