Rated 4.5 out of 5
Based on 521 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 25%
Black
Black
Black
Black
Green
Green
Green
Green
Kelp Forest
Kelp Forest
Kelp Forest
Kelp Forest
Beet
Beet
Beet
Beet
Ginger Spice
Ginger Spice
Ginger Spice
Ginger Spice
black-cropped
green-cropped
BOOST Boxer
beet-cropped
kelp-forest-cropped
BOOST Boxer
ginger-spice-cropped
black-hover
green-hover
kelp-forest-hover
beet-hover
ginger-spice-hover
BOOST Boxer
BOOST Boxer
BOOST Boxer
BOOST Boxer
Lydia is wearing our boxer brief in size 3X
Rated 4.5 out of 5
Based on 521 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 25%
Size
Size Guide
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

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 521 reviews
average rating 4.5 out of 5
Based on 521 reviews
  • 5 Stars
    358 Reviews
  • 4 Stars
    104 Reviews
  • 3 Stars
    38 Reviews
  • 2 Stars
    12 Reviews
  • 1 Star
    9 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
Customer photos and videos
521 Reviews
Reviewed by Rebecca J.
Verified Buyer
I recommend this product
Flow
Very Heavy
Height
5'6
Hip
43" - 44"
Size
L
Rated 4 out of 5
Review posted

Sometimes they feel more “wet” than they are

I love how comfy these are, and how they fit nicely under all but my tightest jeans. Sometimes, though they feel full and about to leak, but then when I run to the bathroom they are actually fine!

Loading...
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 Holly M.
Verified Buyer
I recommend this product
Flow
Very Heavy
Height
5'2
Size
M
Rated 5 out of 5
Review posted

Best period undies

Comfortable, gender affirming, and SUPER effective! I have very heavy flow and long periods, and these have been a total game changer. For my heaviest days I use the booster pad with them (which was included for free!) and the other days I just wear these alone which feel like I’m just wearing normal underwear. They wash easily and stay effective and don’t get weird smells. I love that they’re an ethical, woman-owned company, too. I’m converting everyone!

I’m 5’ 2.5” and 120lbs with a booty, and I’m comfortable in a Medium.

Loading...
Absorbency
Rated 5 out of 5
Comfort
Rated 5 out of 5
Fit
Rated -2 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 Bridget S.
Verified Buyer
Height
5'11
Rated 3 out of 5
Review posted

Love The Concept But Not The Fit

I love the concept but not the fit, unfortunately. The elastic is not super comfortable in my opinion, especially when I am bloating from my period. Additionally, I think these only really work when worn with loungewear. They don’t fit well under my work slacks as they’re quite bulky.

Loading...
Absorbency
Rated 4 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?
Review Stars

Be the first to write a review or ask a question and receive 10% off your next purchase!