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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." ★★★★★

Regular price $52.00
Regular price Sale price $52.00
Sale Sold out
Size
Color: Beet
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

average rating 4.5 out of 5
Based on 791 reviews
  • 5 Stars
    550 Reviews
  • 4 Stars
    142 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
791 Reviews
Reviewed by Lauren S.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Very Heavy
Height
5'3
Hip
35" - 36"
Size
XS
Rated 5 out of 5
Review posted

A dream come true

I am 4 months in…

And so grateful for these comfortable, clean, and sustainable undies! They are a huge step in pampering my powerhouse body’s monthly refresh.

Highly recommend 👍

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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 Makenna P.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'4
Hip
39" - 40"
Size
L
Rated 5 out of 5
Review posted

AMAZING Period Wear!

This underwear is fantastic for those wanting to switch to a more sustainable form of menstrual wear! Having heard about this company on a recommendation from the Sierra Club, I know the material is sustainable, free of PFAS and toxic chemicals, and comes from a reliable and eco-conscious company. The underwear itself also lives up to its promises! The quality is in every stitch and thread of material. I feel so comfortable and protected when I wear these. You can barely tell you’re wearing period underwear. They fit well too and the sizing chart works like a charm. The fabric is SO soft! I don’t get sweaty or feel sticky when I wear these either; they wick away the blood and sweat like magic! I’ve worn them on my heaviest days and had absolutely no issues. I don’t think I’ve even come close to the capacity either. Changing the booster is super easy and it doesn’t bunch when you stretch the booster out all the way when inserting them in the slots. I also find it super convenient that I don’t have to wear the booster if I’m out of clean ones. The waistband is broader than the hipster style and doesn’t dig in at all. It might roll over a bit but it doesn’t bother me. The legs can roll up a bit, especially after pulling your pants back up after going to the restroom or something, but it’s easy to fix and doesn’t happen any other time. They do not dig in either and are unbelievably comfortable. I usually wear these during the first couple days of my cycle because they offer more…

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

Review

Very good 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
Was this helpful?
Reviewed by EMILY P.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'7
Hip
39" - 40"
Size
M
Rated 5 out of 5
Review posted

Secure and comfortable

Very happy with these - I wear them at night and have experienced no leaking even on days 1-2. I love that I can insert the extra boost pad and remove it when full to extend the wear of the boxers.

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Absorbency
Rated 5 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
Was this helpful?
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?