Rated 4.5 out of 5
Based on 795 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 15%
Beet
Beet
Beet
Beet
Beet
Green
Green
Green
Green
Green
Black
Black
Black
Black
Black
Rated 4.5 out of 5
Based on 795 reviews

BOOST Boxer

$52.00 Buy 3+ and save up to 15%
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Classic boxer brief with bold statement waistband & full-coverage leak protection.

Details

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

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 795 reviews
average rating 4.5 out of 5
Based on 795 reviews
  • 5 Stars
    543 Reviews
  • 4 Stars
    144 Reviews
  • 3 Stars
    68 Reviews
  • 2 Stars
    24 Reviews
  • 1 Star
    16 Reviews
89% 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
795 Reviews
Reviewed by Chloé L.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'5
Hip
< 35"
Size
XS
Rated 4 out of 5
Review posted

Love them !

They’re great for everyday wear when I use the booster, but as someone with a heavy flow sometimes, even with the booster, I experience some leakage after a few hours so I don’t recommend them for overnight wear if you have an especially heavy day. However, they are one of the most comfortable pair of reusable period underwear I’ve ever worn and they do hold a lot. I’ve saved loads on period products since I usualy had to switch out pads every 2-3 hours maximum. The booster pads are also something I wish more brands would use because you can buy just one or two boxers and change the pads regularly to keep them fresh for the whole day. The colour choices are also super cute and the black booster pads dont’t show any blood if that’s a concern with the lighter coloured underwear.

I bought a size S and a size XS since I wasn’t sure which would fit better and I ended up prefering the size XS since the elastic is more snug and makes me feel more secure.

I know this review is long 😅 but if you are hesitating to try washable period underwear I realy recommend the boxers since they made me feel super secure and are very easy to wash.

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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 Tayllor L.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Height
5'8
Hip
37" - 38"
Size
S
Rated 5 out of 5
Review posted

THE best

Super comfortable, flattering, amazing full coverage and the removable extra liner is perfect. I have never experienced period underwear that I actually want to wear all the the time, until these.

I'm generally a Medium in most clothes, but I got a Small based on the size chart, and they fit perfect. Definitely go with the recommendations on the size chart.

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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 Katrina B.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Heavy
Height
5'3
Hip
35" - 36"
Size
S
Rated 5 out of 5
Review posted

Love these!!!

Not only did I find these extremely comfortable but I wore them on my heaviest flow day and had 100 percent coverage no leakage..now I was just sitting around all day so I didn't get to test how they held up with being active yet..easy to rinse and wash..putting the liner in isn't convenient but I don't mind spending an extra min or so. Overall very happy with these and will be purchasing another pair.

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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 Aly
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
6'0
Size
3X
Rated 5 out of 5
Review posted

Plus Size & Autistic Approved!

Where has period underwear been my whole life?? I guess it doesn’t matter now that I’ve discovered Aisle! I’m plus size and autistic, so it’s incredibly hard to find underwear that doesn’t give me sensory issues (especially on my period). These are near perfect. I bought one pair to start and used them on the first day of my period. On the second day I had to switch back to regular underwear with a disposable pad and it was such a sensory nightmare—the pad bunched up and shifted so I bled through my undies, then I grabbed a different pair only to find out the pad wouldn’t stick to the fabric—many tears and blood were shed and my only regret was not buying more Aisle.

PROS:

- The waistband is soft and stretchy while staying in place

- Tencel material is so soft

- LOVE the extra long padding front and back, it gives me so much peace of mind while sitting or sleeping

- The open gusset with pocket for a booster is genius ✨

CONS:

- Wish the rise was just a tad longer in the front to help cover my belly a bit more, but I’m 6’ tall so that probably won’t be an issue for most

- I wish the gusset part that touches my skin was pure cotton and not polyester :(

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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 Julie A.
Verified Buyer
BOOST Boxer
Reviewing
BOOST Boxer
I recommend this product
Flow
Moderate
Height
5'6
Size
M
Rated 5 out of 5
Review posted

I love these! However...

I love these! However, the liner inserts that hold "4 tampons worth" I don't believe. I actually have to wear 2 liners at once and bleed through them like crazy even on my light days when I'm not heavy causing me to change them frequently (like every hour). However, the material the actual underwear its-self is phenomenal. When it bleeds through both pads, it doesn't bleed through the underwear portion.

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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
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