Rated 4.5 out of 5
Based on 806 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 15%
Beet
Beet
Beet
Beet
Beet
Green
Green
Green
Green
Green
Black
Black
Black
Black
Black
Rated 4.5 out of 5
Based on 806 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 15%
Size
Size Chart
Color
Notify Me When Available

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.

You might also like

Black
Black
Size
Color

BOOST Brief
 $50.00

Color
Absorbency
Beet
Black
Size
Color

Everyday Brief
 $32.00

Color
Kelp Forest
Kelp Forest
Size
Color

BOOST Thong
 $28.50 $38.00

Color
Absorbency

Stayin’ dry, feelin’ fly

Product Features Image
Machine wash <br> and dry safe (NBD) Machine wash
and dry safe (NBD)
Made with Truetex™ fabric technology Made with Truetex™ fabric technology
Holds 8+ tampons worth with our booster Holds 8+ tampons worth with our booster
Includes a bonus absorbency booster Includes a bonus absorbency booster
Product Features Image Product Features Image

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 period underwear 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!

Read More
FAQ Image

Real folks, real reviews

Rated 4.5 out of 5
Based on 806 reviews
Write a review Ask a question
Write a Review
average rating 4.5 out of 5
Based on 806 reviews
  • 5 Stars
    549 Reviews
  • 4 Stars
    144 Reviews
  • 3 Stars
    70 Reviews
  • 2 Stars
    25 Reviews
  • 1 Star
    18 Reviews
89% 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
806 Reviews
Reviewed by Caitlyn
Verified Reviewer
BOOST Boxer
Reviewing
BOOST Boxer
I don't recommend this product
Flow
Moderate
Size
M
Rated 1 out of 5
Review posted

Leaks every time

I was really really sad when I got these underwear and they leak. Even when my flow isn’t particularly heavy they leak. Really disappointment because I’ve read such great reviews. Unfortunately they are not as leak proof as they say.

Loading...
Absorbency
Rated 1 out of 5
Comfort
Rated 3 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 Katie B.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I don't recommend this product
Rated 1 out of 5
Review posted

I wanted to love these, but the fit is terrible

I wanted to love these, but the legs constantly ride up - they are too short to begin with and don't stay in place at all. The gusset is also too narrow - perhaps it just hasn't been sized up properly for plus sizes? Anyway, it is narrow and hard to keep in just the right place. I haven't fully testes the protection yet, but I am expecting leaks.

Loading...
Absorbency
Rated 3 out of 5
Comfort
Rated 1 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 Ish
Verified Reviewer
BOOST Boxer
Reviewing
BOOST Boxer
Flow
Very Heavy
Size
XL
Rated 3 out of 5
Review posted

Fit is disappointing

I wanted to love these but I was disappointed by the way they fit. They are not very high waisted so the waistband sits right over my lower belly, which for sensitive girlies for me makes my cramps worse.

They would be perfect if they fit more high waisted!

Loading...
Absorbency
Rated 4 out of 5
Comfort
Rated 2 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 Marie S.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'7
Hip
35" - 36"
Size
S
Rated 5 out of 5
Review posted

Best underwear, period 😜

I tend to use the Boost underwear on my period, and the Essentials other days. They're just that comfortable. I wish I had a chance to try the Base underwear before they went away.

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 Agata W.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'7
Size
M
Rated 5 out of 5
Review posted

Really comfortable

These are really comfortable and look really cute as just shorts as well :)

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?
Review Stars

Be the first to leave a review!

Write a review Ask a question