Shop Monthly | Period underwear for people with complex periods

Planet-friendly period underwear for ALL people who bleed

Say hello to your comfiest period yet

Pre-order now

Planet-friendly

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Plastic-free

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Gender-Inclusive

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Pre-order our bestsellers

3 pairs - save 5%

The Intro Bundle

The Intro Bundle

Regular price $71.25 USD

Regular price Sale price $71.25 USD
Unit price per
5 pairs - save 10%

The Starter Bundle

The Starter Bundle

Regular price $112.50 USD

Regular price Sale price $112.50 USD
Unit price per
7 pairs - save 15%

The Favorite Bundle

The Favorite Bundle

Regular price $148.75 USD

Regular price Sale price $148.75 USD
Unit price per

Our Mission

We make comfortable period products because EVERYONE deserves a comfy period.

Designed with you in mind, we talked to 250+ people with periods before the first sample was ever created. Our period undies are complex period approved, so if you struggle with PCOS, endometriosis, gender dysphoria, pelvic floor dysfunction or more, we got your back! Made from recycled materials in sizes xxs-4xl.

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Our Features

Odor-resistant
Designed to keep you fresh with a cotton layer and bamboo blend for natural odor control
Leak-proof
Our 4-layer gusset is ultra thin, but designed to absorb your flow and prevent leakage
Absorbent
Our boxer brief holds about 25 ml of flow, which is equal to 1 menstrual cup, 3 super tampons, or 5 pads.
Super stretchy
Ultra stretchy waistband and fabric that adapts to your body, offering a flexible fit that moves with you

How it Works

Made for your flow, built for comfort

The magic stuff is inside the boxer in the gusset. Our gusset is ultra thin, but it’s still got all the power to absorb your period. Made from a 4 layer tech:

The top layer is made of a cotton material, keeping you dry and comfy during your period.

The middle two layers are a towel-like material, absorbing your blood.

The last layer is a slick, leak-proof layer that prevents the blood from soaking through.

1. The top layer is made of a cotton material, keeping you dry and comfy during your period.

2. The middle two layers are a towel-like material, absorbing your blood.

3. The last layer is a slick, leak-proof layer that prevents the blood from soaking through.

Try it out

Better for the planet, better for your health

monthly is comfy, kind to the planet, better for your health, and gender-inclusive!  Most traditional period brands... aren’t.

Comfy

Gender inclusive

Planet friendly + reusable

Saves you $ longterm

monthly

Leading Pad Brands

Leading Tampon Brands

monthly

Leading Pad Brands

Leading Tampon Brands

Comfy

Gender inclusive

Planet friendly + reusable

Saves you $ longterm

Shop the Boxer Brief

Free shipping over $50

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Free shipping over $50

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Free shipping over $50

✸

4.5

Rated 4.5 out of 5 stars

40 Reviews

Shop the boxer brief

Better for the planet, better for you, better for your wallet - what’s not  to love?

Our classic boxer brief comes in two colors, matcha and black. It is made for everyone who bleeds - whether you are trans, non-binary, female-identifying, or struggle with difficult periods, our boxers are designed to make your time of the month feel more comfortable, inclusive, and normal.

Try it out - you won’t regret it! And if you do, free returns on us (but let’s be real, it’ll be love at first bleed.

The Boxer Brief

$25.00 USD

~~$25.00 USD~~ $25.00 USD

Shop the Boxer Brief

Don't just take our word for it

I've had my monthlies for about a year now, and I absolutely love them!

-Delilah

Wearing comfortable, cute, period undies helps you feel better

-Ada

I thought that menstrual underwear was the best it was going to get... until I tried monthly

-Peaches

monthly underwear helps me feel more confident in my body

-Aeja

About us

Meet Aiko, founder of monthly

Our founder was diagnosed with pelvic floor dysfunction in her early 20s and had to say bye-bye to her favorite period cup and hello to a journey of finding actually* comfortable and functional period products.

After tons of trial and error and oversharing about periods with her community, she knew we all deserved more. So she created monthly. Period care made comfy for anyone and everyone…well because… we all deserve that!

More about us