Rated 4.5 out of 5
Based on 348 reviews

BOOST Brief

$50.00 Buy 3+ & Save Up to 15%
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Rated 4.5 out of 5
Based on 348 reviews

BOOST Brief

$50.00 Buy 3+ & Save Up to 15%
Size
Size Chart
Color
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Full bum coverage is back, baybee! Get that hi-waist profile for your zero-waste lifestyle.

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.

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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 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!

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Real folks, real reviews

Rated 4.5 out of 5
Based on 348 reviews
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average rating 4.5 out of 5
Based on 348 reviews
  • 5 Stars
    250 Reviews
  • 4 Stars
    51 Reviews
  • 3 Stars
    35 Reviews
  • 2 Stars
    9 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
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348 Reviews
Reviewed by Annemarie van D.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Light
Height
5'11
Size
2X
Rated 5 out of 5
Review posted

Works great!

The BOOST brief is great! Fits perfectly on a big booty and does it’s job. I don’t have super heavy flow, but for me it works. Never want to go back to tampons! Would even get a swimwear version if they would sell it.

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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 Meaghan D.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Size
L
Rated 5 out of 5
Review posted

Love them but consider sizing up

So comfy and absorbent. I sized up and I was happy I did (normally a M, got a L).

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Absorbency
Rated 5 out of 5
Comfort
Rated 5 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 Melissa M.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Height
5'2
Size
XL
Rated 5 out of 5
Review posted

Best period product ever

Super comfy, good coverage. No leaks in the middle of the night.

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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 Marcella B.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Rated 5 out of 5
Review posted

Nice cut

Generous cut that covers my bum!

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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 Kylie C.
Verified Buyer
BOOST Brief
Reviewing
BOOST Brief
I recommend this product
Flow
Moderate
Height
5'5
Hip
43" - 44"
Size
XL
Rated 5 out of 5
Review posted

Great investment

This is my first period using these and they’re great. The sizing was spot on and they fit well. I like the high rise. With the boost in, this made me realize that tampons can make it seem like your flow is a lot more than it actually is. Saving so much waste by switching to these.

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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?
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