• Kelp Forest
  • Kelp Forest
  • Kelp Forest
  • Kelp Forest
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Aisle

BOOST Thong (3X-5X)

BOOST Thong (3X-5X)

$15.20
$38.00 $15.20
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Color: Kelp Forest
Our leakproof period thong replaces disposables for light days. Made with naturally breathable, planet-friendly Tencel & organic cotton.

Details

Perfect for light days, or to back up your tampon or menstrual cup.

Absorbency

Holds up to 1 tampons worth.

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
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 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?

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

Do I need to wear a pad or tampon with them?

No need to double up for light days and minor leaks, but we do recommend pairing your thong with a cup or tampon for moderate-heavy periods.

Does it come with a booster?

The Aisle Thong was designed specifically for light flow needs, so we skipped the booster for this style.

How do I wash my Aisle undies?

It’s not that 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 4.8 out of 5
Based on 64 reviews
  • 5 Stars
    57 Reviews
  • 4 Stars
    2 Reviews
  • 3 Stars
    3 Reviews
  • 2 Stars
    2 Reviews
  • 1 Star
    0 Reviews
91% of reviewers would recommend this product to a friend
Absorbency
Rated 3 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
64 Reviews
Reviewed by Liat B.
Verified Buyer
BOOST Thong
Reviewing
BOOST Thong
I recommend this product
Flow
Heavy
Height
5'7
Size
1X
Rated 5 out of 5
Review posted

So cute

Purchased for my bestie. Also got her the base thong. She loved them both but these were her favourite. Perfect size and super comfy

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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?
Reviewed by Emma
Verified Reviewer
BOOST Thong
Reviewing
BOOST Thong
I recommend this product
Height
5'2
Hip
41" - 42"
Size
L
Rated 5 out of 5
Review posted

Comfy and breathable

I prefer thongs for everyday underwear. In the past I've used thong-specific pads for when I want no pantylines but have my period. These thongs are nicer. The absorbency is part of the underwear and doesn't move around or go anywhere. The absorbent part is smooth and doesn't stick out compared to the rest of the underwear. I use it with my menstrual cup for medium flow days or by itself for light flow days (at the end of my period).

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Absorbency
Rated 2 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 Jessika P.
Verified Buyer
BOOST Thong
Reviewing
BOOST Thong
I recommend this product
Flow
Moderate
Height
5'6
Hip
41" - 42"
Size
L
Rated 5 out of 5
Review posted

The only underwear I will wear

I love my boost thongs, I have enough pairs that I can wear them everyday. They are comfortable and breathable and I love the fact that I don’t feel like I have to give up my preferences and still be protected from small leaks or during my period.

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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 Brandi B.
Verified Buyer
BOOST Thong
Reviewing
BOOST Thong
I recommend this product
Flow
Light
Height
5'6
Hip
35" - 36"
Size
XS
Rated 5 out of 5
Review posted

The period undies I’ve been dreaming of!!

I’ve been looking for the perfect thong undies to wear. I’ve struggled to find a pair that fits snugly enough to be seamless under my clothes, but is still comfortable for daily wear. I finally found them!

These are snug when first purchased, but they become comfier with wear.

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Absorbency
Rated 2 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 Nichole
Verified Reviewer
BOOST Thong
Reviewing
BOOST Thong
I recommend this product
Flow
Moderate
Height
5'2
Hip
35" - 36"
Size
S
Rated 5 out of 5
Review posted

My favourite underwear!

I absolutely love my Boost thongs, and they are, by far, my favourite underwear. I find that they’re comfortable to wear, and, if I had enough pairs, I would wear them everyday. The added protection they provide keeps me feeling confident, especially during exercise, and being active outdoors. I have tried other brands of period underwear, but I don’t find that they are as good. Some other brands tend to stay moist, which feels awful. I find that Aisle’s underwear dries faster, and feels better! I highly recommend the Boost thong by Aisle. I am 5’2 and 120lbs, and the size small fit me well.

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?