Rated 4.5 out of 5
Based on 243 reviews

BOOST Bikini

$37.80 $42.00 Buy 3+ and save up to 25%
Black
Black
Black
Black
Green
Green
Green
Green
Beet
Beet
Beet
Beet
Ginger Spice
Ginger Spice
Ginger Spice
Ginger Spice
Kelp Forest
Kelp Forest
Kelp Forest
Kelp Forest
Sea Glass
Sea Glass
Sea Glass
Sea Glass
black-cropped
BOOST Bikini
green-cropped
beet-cropped
ginger-spice-cropped
kelp-forest-cropped
black-hover
green-hover
rust-hover
beet-hover
ginger-spice-hover
kelp-forest-hover
Rated 4.5 out of 5
Based on 243 reviews

BOOST Bikini

$37.80 $42.00 Buy 3+ and save up to 25%
Size
Size Chart
Color
Notify Me When Available
Our lowest rise style with bold statement waistband. Wear to replace or back up single-use period products.

Details

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

Absorbency

Holds 8+ tampons worth with our booster. Let the crimson wave flow.

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 Boxer
 $48.00

Color
Absorbency
XXS-XL
XXS-XL
Size

Booster
 $8.00

Kelp Forest
Kelp Forest
Size
Color

BOOST Hipster
 $39.60 $44.00

Color
Absorbency

Stayin’ dry, feelin’ fly

Product Features Image
Machine wash & dry safe Machine wash & dry safe
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 undies 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 243 reviews
Write a review Ask a question
Write a Review
average rating 4.5 out of 5
Based on 243 reviews
  • 5 Stars
    172 Reviews
  • 4 Stars
    46 Reviews
  • 3 Stars
    14 Reviews
  • 2 Stars
    6 Reviews
  • 1 Star
    5 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
Open user-uploaded photo and review in a modal
Open user-uploaded video and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal
243 Reviews
Reviewed by Taylor C.
Verified Buyer
BOOST Bikini
Reviewing
BOOST Bikini
I recommend this product
Flow
Heavy
Height
5'2
Size
S
Rated 5 out of 5
Review posted

Amazing!

I had previously bought a couple of liners but the underwear is a game changer! I recommend these to everyone I know! They keep you dry even on your heaviest flow, and don’t leak. Super comfortable too.

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 Lucy
Verified Buyer
BOOST Bikini
Reviewing
BOOST Bikini
I recommend this product
Flow
Very Heavy
Height
5'11
Hip
39" - 40"
Size
M
Rated 5 out of 5
Review posted

Good snug fit for sports

When I first got these they were too tight but after 3 or 4 washes/wears they are comfortably snug and don't move an inch - great for sports! No wedgies. Good absorbency with the pad insert in there.

Loading...
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
Was this helpful?
Reviewed by Stacy B.
Verified Buyer
BOOST Bikini
Reviewing
BOOST Bikini
I don't recommend this product
Flow
Heavy
Height
5'8
Size
L
Rated 2 out of 5
Review posted

They are okay

It was okay.. my daughter and I ordered from two different companies to try them out. Both of us chatted after our first period with both brands… unfortunately we both agreed that the plasticy flap on your undies rolls out and open (for both of us) and rubs your butt and vulva kinda raw.. not really loving that.. your pads are nice and soft easy to wash.. but yeah that rubbery flap is painful, and will be the deal breaker for additional purchases.. sorry..

Loading...
Absorbency
Rated 3 out of 5
Comfort
Rated 1 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?
Review Stars

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

Write a review Ask a question