Three women wearing Fri Period underwear Three women wearing Fri Period underwear

A cleaner, comfier, more sustainable period

ORGANIC COTTON & BAMBOO PERIOD UNDERWEAR

Excellent 4.9 | 1000'S of Happy Periods

No more leak stress

Free from toxic nasties

Machine washable

No more leak stress

Free from toxic nasties

Machine washable

Classic Period Brief - Fri Period
CUSTOMER FAVE

Classic Period Brief

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Amazing comfort & absorbency

Period Boxers

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You deserve better.

Fri is pronounced free, and that’s exactly how we want you to feel. We’re a women-owned brand on a mission to make period products cleaner, comfier and more planet-friendly.

Hear from our community

New to period underwear?

Fri Period underwear feels just like your regular (comfiest) underwear, but each pair does the work of several tampons or pads. Ethically made from natural, breathable fabrics, Fri Period will have you feeling fresh & confident (even on your heaviest flow days).

Click below for all the deets on how they work.

Low - Rise Hipster - Fri Period
Cute yet powerful

Period Hipsters

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Read our latest reviews

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

You can tell that the quality of these are so much better than other period underwear brands. The customer service is absolutely amazing!

Grace T., USA

I've tried several brands of period underwear, but this one stood out. The coverage was noticeably better—especially on heavier days. The fabric felt like higher quality compared to others I've used.

Havva T., Australia

The absorption seemed super good. SUPER comfortable. I am so happy I gave these a try because so far they are making me a really happy customer.

Amber H., USA

I wanted a boxer style for overnight. These were the only brand I found that actually used cotton in the gusset, which was very important in my search. I absolutely LOVE these. I have been converted.

Michala Z., USA

For the first time in forever, I now have a reliable pair of period undies where I don’t need to have backup pads on hand. I can wear these with confidence all day long/

Frances B., USA

My period is pretty heavy and these did the job. They were comfortable and leak-free all day. Also really like wearing them at night as doesn’t “feel” like I’m wearing anything.

Noela B., Austtralia

As Seen In

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Woman wearing period underwear
Meet our

Classic Period Brief

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Group of women wearing period boxers
Meet our

Period Boxers

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Fri Period underwear in a row

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Woman wearing low-rise hipsters
Meet our

Period Hipsters

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"Wearing these has changed my period"

Hard-working, extremely comfy and kind to your skin (& the planet!).

Our Story

With 1.8 billion of us menstruating each month, we're on a mission to make periods better - for you, and for the planet.