Shop By Flow
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Heavy Flow Period Underwear
Heavy absorbency undies designed to hold 8+ tampons worth of fluid. Best for...
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Adjustable Flow | BOOST Period Underwear
Customize your absorbency with Boost. Featuring a built-in lining that absorbs 4...
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Light Absorbency Period Underwear
Ultra-thin, leakproof period underwear for light to moderate flow. Wicks moisture away,...
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Everyday Underwear
Our Everyday non-leakproof underwear are made from the softest TENCEL™ / organic...
Why aisle period underwear are trusted by Millions worldwide
1. Zero Leaks, Zero Stress
From light to super absorbent, our leakproof tech has you covered every day of your cycle.
2. Ultra Comfy
Made with an OEKO-TEX® certified TENCEL™ and organic cotton blend for ultra stretchy, breathable comfort.
3. Saves you $$$
Our undies and pads are built for endurance, not the landfill. Each pair replaces up to 1000 disposables and can last for 5+ years, wash after wash. Plus, when you buy 5 pairs, you'll get 2 free!
4. Best for the Planet
Aisle is the highest ranked B Corp Period Care brand in the world. So you can sleep easy knowing you've done your part to save the planet.
5. Giveback
1% of every purchase is donated to Moontime Connections, an indigenous lead organization working to eliminate period poverty in rural communities.
Real Reviews from real users
Let customers speak for us
from 11715 reviewsSoft and effective, even for heavy periods. Accurate sizing and great quality that stands up to frequent washing over several years. Worth every penny to replace disposables!
I have struggled my whole life with pads that get crumpled in the night, overnight, super etc. It gets bunched to one side, boom... and then a leak. These Aisle boxers are amazing, no more leaks, and they are super comfortable and you can just pop them in the wash and then the dryer which is incredible.
Obsessed! Best period undies ive tried and the plus sizes are actually true to size!
I have been using these for a couple of cycles and they are the most comfortable period underwear I have tried. They are actually more comfortable than a lot of regular underwear! They seems to hold a good capacity and I feel confident there won’t be any issues. I feel good about not using disposable feminine products anymore.
Absolutely amazing! So comfortable! I have used lots of different styles and brands and these are the absolute best! Definitely worth it!
I struggle with other brands to find a gusset that’s long enough. These were perfect and fit great.
Absolutely love these! It's the most secure I've ever felt sleeping on my heaviest days.
I LOVE these. So incredibly comfortable, did not feel bulky at all, and i wore them for a full day with 0 leaking!!! 1000000/10 I will tell anyone and everyone about these. They are a must have for period having people!
I will definitely give it that Aisle is the best period underwear that I and my daughter have tried. We have tried a lot, at least seven or more brands. These are soft, stretchy and the best part is they can be washed and dried like normal. That is a huge plus. They are true to size. I am between a 3x and 4x....same in these.
My favorite is the boost brief. I found the overnight boxer do not fit my body well and that did cause an issue for me. I want an overnight panty but they only have the boxer. I really want a booster brief with higher protection in the back and even front for back and front sleepers. They are great for daytime but not nighttime. Most period panties I tried had the protection go much higher in the front and back, so that is a disappointment. The other thing I hope they change is the width of the gusset. Specifically for the plus side. The gusset is not wide enough for larger women. I have had it move over too much and not have enough coverage, causing a leak in a restaurant where I am still mortified and not sure I can ever go back. Along with it moving again in my car and now I have a big stain.
Ad long as I am careful that it doesn't move, then they are fine. But now with this two mishaps, it is making me more nervous to go with just the period panty without a pad as a backup and that feels like it defeats the purpose for me. I would expect others to have the same issue. So I am hoping they change the width of the gusset.
Change those two things and I think the panty is perfect. Oh and add an overnight brief.
I have switched to Aisle from a different popular brand and LOVE it! These are so much more comfortable, true to size and so well made. I am so impressed! I will be getting more as I wanted to check them out first. I am sold and hooked. Well done!
I love my booster boxers, they’re really comfortable. I used to have thinx underwear but switched because these are free from toxic chemicals, and look much more durable than the thinx underwear I used to have. I love these!
Genuinely more comfortable than any of my regular underwear. Felt more fresh/hygienic wearing these compared to pads. Wore on my heaviest flow days with the Booster insert, didn’t leak through.
I have debilitating heavy flow and pain, and have had issues with every disposable product (and have tried them all..) including “cheaper” period undies. I wish I had found these sooner, they are worth the cost and will pay you back month after month in comfort and irritation-free flow support. I bought my first pair two years ago and they are even comfier worn in. 10/10
I’ve had previous models of these (at least 9 years old) and decided to treat myself to new ones. SO COMFY AND ABSORBENT! Also love the solid black, which previously weren’t available. Much prefer these to the old fleece ones!
My first ever pair of leakproof underwear, and OMG, I should have switched sooner! True to size, true to function, and soft as hell. No itch, no stink, no leaks, even on heavy days.