For the perfect fit, don’t take a wild guess — take your hip measurement!
Standing with your feet together, wrap a soft measuring tape around the
widest part of your lower hip.
| Hip | Waist | Size | |
| XXS | 33-34" | 23-24" | Y14-00 |
| XS | 35-36" | 24-25" | 0-2 |
| S | 37-38" | 26-27" | 4-6 |
| M | 39-40" | 27-29" | 8-10 |
| L | 41-42" | 30-32" | 12-14 |
| XL | 43-44" | 33-35" | 16-18 |
| 1X | 44-46" | 37-39" | 16-18 |
| 2X | 48-50" | 41-43" | 20-22 |
| 3X | 52-54" | 45-47" | 24-26 |
| 4X | 56-58" | 49-51" | 28-30 |
| 5X | 60-62" | 53-55" | 32-34 |
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.
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.
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.
| 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
|
these are the most amazing thing ever they completely changed my periods! they arw super comfortable and the pocket for a pad is amazing. i have super heavy periods and there’s absolutely no leaking even overnight. i was cautious about buying because theyre a little on the expensive side but they are worth every dollar and i will wear them even when not on my period
I almost exclusively wear thongs when I’m not bleeding because I find briefs so uncomfortable. I tried the aisle briefs-they felt very nice and snug but holy panty lines! Unfortunately, they fell victim to an unsupervised goldendoodle.
Thankfully, the boxers are even more comfy than the briefs and feel SO secure. The absorbent lining goes back very far—almost to the top of my butt crack. I can sleep on my back and stomach all night on the heaviest days and not come close to a leak. With a booster I can wear cream and white all day without checking the mirror.
I also appreciate that they have substantially less spandex than women’s underwear usually does. They will last a LONG time going through the wash.
| 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
|
Most gender affirming purchase of my life. Need more pairs to keep that going throughout the blood times!
| 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
|
Love these boxers, very comfortable, and absorb alot!
| 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
|
So great for sleeping!
| 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
|
