Ethically made period underwear designed to support every body

Your customers deserve better

Founded by an Australian and an American who met in Japan, Fri Period was created to offer cleaner, comfier & more sustainable period care—without the toxic nasties.

Fri Period underwear is made from breathable organic cotton and bamboo, ethically produced, and designed to support every body with comfort, confidence, and zero “stain shame.” Proudly women-owned and packaged in compostable materials, we’re here to make periods easier—for your customers and the planet.

Why retailers love Fri Period

Icon showing Fri Period underwear's triple layer tech

Leak-proof tech

Absorbs the same as 3 tampons or pads.

Organic cotton & bamboo

Soft, breathable fabric

Icon showing Fri Period underwear is made without using PFAS

Made without PFAS or nasties

Kind to your skin, safe for your body.

Printed gusset = no stain stress

A beautiful pattern that puts your mind at ease.

Women-owned

Made by menstruators for menstruators

Reusable & sustainable

Good for your body and the planet.

Real reviews

★★★★★
I've tried several brands of period underwear, but this one really stood out. The coverage was noticeably better, offering more security—especially on heavier days. The fabric felt like higher quality compared to others I've used, soft yet durable, and it held up well after washing. It offered reliable protection without sacrificing comfort or style.
Havva
Perth, Australia

★★★★★
I’m so grateful to discover this brand! I have been wearing period pants from other brands for years but have never found any that are perfectly leakproof — until now, thanks to these classic briefs from Fri Period! 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
Palo Alto, CA

★★★★★
I'd been wanting to try period underwear and then a friend got me these. I was nervous at first but they absolutely do the job and are so comfy to wear. Washing is easy and they come out like new each time. Plus the print is really cute. I'm def gonna get more!
Noela
Houston, TX

★★★★★
The last thing I want on my period is more discomfort. This underwear has made this time of the month so much more comfortable.
Rebecca

★★★★★
I waited to go through two cycles prior to reviewing. I wore the underwear on both a medium/light day, as well as on a heavy day. They are very comfortable and held everything in with no leaking. They are easy to care for and washed well. It is great to purchase a sustainable product that is also packaged in sustainable, compostable packaging! I will definitely be purchasing again!
Megan
California

★★★★★
I bought a pair of these for heavy flow days and they were just what I needed - especially for night time as they are so comfortable and no need to worry about leakage! I've used re-usable pads before, but these definitely work better in terms of comfort, duration of use, and they look great! They are easy to wash too.
Lara G

★★★★★
I absolutely love these period panties! I ordered a medium and they fit perfectly. I was able to wear them overnight and throughout the day without any worry. They are very comfortable and keep you dry. I 100% recommend these. I will be purchasing more!
Novi J
Houston, TX

★★★★★
The product is awesome. I was holding off providing a review because I wanted to see how absorbent it was... turns out, I couldn't tell, because it's so incredibly absorbent!!!! They are miles comfier and cooler than modibody, which I had before.
Helen
Townsville, QLD