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Aisle

BOOST Retro Brief

BOOST Retro Brief

Buy 3+ & save up to 15%
Size
Color:
Retro classic style with built-in period protection, featuring and our super soft TENCEL™, organic cotton, spandex blend. The front pouch can be used for storing spare boosters, or whatever else you need a sneaky spot to stash.

Details

Includes a bonus absorbency booster for heavy days. Tuck ends into the pockets at each end of the gusset & 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.

  • Made with TENCEL & organic cotton
  • Machine wash & dry safe
  • Replaces 100+ disposable products
View full details

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 period underwear work?

Aisle undies feature a specially engineered lining that combines super-absorbent Truetex™ technology with a leak-proof lining to keep you dry and feelin’ fly.

How much fluid do they hold?

8X as much as a standard disposable! Our undies absorb 4 tampons worth of fluid on their own, or 8 tampons worth when you wear with the included booster

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?

It’s not complicated - our undies were made to fit into your regular laundry routine. Just rinse out in cool water, then wash and dry with your regular laundry. As with any garment, wash with like colors.

Real reviews from real people

Write a Review
average rating 4.7 out of 5
Based on 45 reviews
  • 5 Stars
    34 Reviews
  • 4 Stars
    8 Reviews
  • 3 Stars
    3 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 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
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45 Reviews
Reviewed by RACHAEL F.
Verified Buyer
I recommend this product
Flow
Moderate
Height
5'7
Rated 5 out of 5
Review posted

Peace of mind

Amazing! It is incredible how freeing my period feels thanks to the peace of mind of these products and not having to worry about the toxins of single use products

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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
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Reviewed by Chelsea W.
Verified Buyer
I recommend this product
Flow
Moderate
Height
5'8
Hip
51" - 54"
Size
5X
Rated 5 out of 5
Review posted

LOVE these!

These are very well made! I will be ordering more! Except maybe the full boxer. I have an apron belly and the briefs sort of slide down a bit. But I do love the style!

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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 Sam
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

I can't get a full workday wear out of these even with a booster pad but they're great for in-house or overnight wear. Super comfortable. Helps reduce the chaffing I'm used to.

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Reviewed by Kristen D.
Verified Buyer
I recommend this product
Flow
Heavy
Height
5'5
Rated 5 out of 5
Review posted

Great

With the insert they absorb a heavy flow. No smell or wet feeling. Super comfortable I would wear them not on my period. Without the insert I would wear at the end of a period, or if I had a lighter one. I am going to buy enough for a week.

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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 Margaret L.
Verified Buyer
I recommend this product
Flow
Moderate
Height
5'6
Size
M
Rated 5 out of 5
Review posted

Comfy

Wearing comfy underwear is essential for me during my period. I especially love wearing these for overnights by themselves or as back up.

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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?