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Aisle

BOOST Brief

BOOST Brief

$50.00
$50.00
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Size
Color: Sterling
Use your HSA or FSA when you checkout with Flex
This full-coverage cut features a high waist and soft, narrow elastic. Made with our luxurious Tencel & organic cotton blend for the ultimate period comfort

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

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

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
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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?

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.

<b>No detectable levels of PFAS</b> have been found in our underwear, based on a detectable limit of one part per million.

Nope! Our undies were built to completely replace pads and tampons. They make great backup protection with tampons or menstrual cups, too.

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.

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!

Real reviews from real people

Write a Review
average rating 4.6 out of 5
Based on 406 reviews
  • 5 Stars
    297 Reviews
  • 4 Stars
    60 Reviews
  • 3 Stars
    39 Reviews
  • 2 Stars
    7 Reviews
  • 1 Star
    3 Reviews
92% 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
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406 Reviews
Reviewed by Harsimran K.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Moderate
Size
S
Rated 5 out of 5
Review posted

Super comfy!

I was scared at the start that these would not fit me as comfortably, but lo and behold, they are perfect! I do not have to worry about any leaks overnight or anything.

Highly recommend!

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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 Rebecca M.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Moderate
Height
5'6
Size
S
Rated 5 out of 5
Review posted

Loving my Aisles!

I decided to try Aisle after being a Knix girl for a number of years. I love my Knix but Aisle is quickly starting to outshine them! I love the convenience of being able to replace just the liner which is so much more convenient when out in public. They are soft and comfortable and so far have held their shape very well. I had a couple of pairs that ended up with manufacturers defects and it was addressed immediately through their fantastic customer service. Consider me converted!

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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 Emily Marie B.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Size
L
Rated 5 out of 5
Review posted

2nd time purchasing

Still comfy and absorbant

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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 Karla M.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Moderate
Size
XL
Rated 5 out of 5
Review posted

Best ones yet!

I originally purchased the boxer type briefs, and although i still love them, these are honestly my favorites. So comfortable, especially with the added security of a higher waisted cut.

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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 Kaitlyn F.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Heavy
Height
5'9
Hip
47" - 50"
Size
2X
Rated 5 out of 5
Review posted

Get them!

This is the third brand of period underwear I have tried over the years and Aisle is hands down the best. As a middle to bigger body the fit of these is a dream and the booster is brilliant! I've already bought a full set.

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?