The Fri Period Difference

Better for your body.
Better for the planet.

OEKO-TEX logo on a green background

OEKO-TEX Standard 100

Global Organic Textile Standard (GOTS) certification logo, featuring a green circular emblem with two white arrows pointing upward and the text 'GLOBAL ORGANIC TEXTILE STANDARD' and 'GOTS' in black.

Global Organic Textile Standard 6.0

OEKO-TEX logo on a green background

OEKO-TEX Standard 100

Global Organic Textile Standard (GOTS) certification logo, featuring a green circular emblem with two white arrows pointing upward and the text 'GLOBAL ORGANIC TEXTILE STANDARD' and 'GOTS' in black.

Global Organic Textile Standard 6.0

With 1.8 billion of us bleeding each month, we all deserve better.

We started Fri Period because we couldn't find period underwear we fully trusted. We wanted something that was comfy, actually worked, and didn't come with a side of forever chemicals. So we made it ourselves.

Nina & Amy x

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Every layer, tested and certified

The fabric that sits against your skin is GOTS-certified organic cotton. Our underwear is OEKO-TEX® Standard 100 certified, which means it's independently tested for harmful substances. The leak-proof layer uses a plant-based finish made without PFAS.

Curious what's in every layer?

Our impact

Stack of green plastic bottles on a black background

Ocean-bound plastic, removed

Through our partnership with GoodAPI, one piece of ocean-bound plastic is collected for every product you buy.

A close-up of white textured fabric with soft folds and a slightly crinkled surface.

Hundreds of disposables kept out of landfill

One pair, worn cycle after cycle, replaces hundreds of pads and tampons over its life.

Packaging that doesn't stick around

Our bags are made of biodegradable cornstarch and our mailers are pollastic (made from recycled ocean-bound plastic)

Our Values At A Glance

Icon showing Fri Period underwear is made without using PFAS

NON-TOXIC, BODY SAFE MATERIALS

Made without using PFAS or other toxic nasties—because you deserve peace of mind.

Icon showing Fri Period underwear is eco friendly

SUSTAINABLE FROM START TO FINISH

Our sustainable design is built to last (and even packaged in a compostable & biodegradable bag).

Icon showing durablity

ETHICALLY MADE

Manufactured in a certified facility that ensures fair labor and supports menstrual equity.

Teal heart outline on a white background

FEMALE-FOUNDED

Fri Period is made for menstruators by menstruators

Read about our commitment to ethical manufacturing

Small business, big heart

Fri Period was started by two friends, Nina & Amy.

Nina has a masters degree in Human Rights Law and is passionate about supply chain transparency and menstrual equity.

Amy is a zoologist with a background in conservation education. Sustainability is her jam.

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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Woman wearing low-rise hipsters
Meet our

Period Hipsters

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Meet our

Waterproof Wet Bag

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Hear from our customers

★★★★★

“I feel comfortable and secure no matter how heavy my period is."

Clare B
CA
★★★★★

Super comfy, no leaks, no odor, no stress.

Lara G
Belgium
★★★★★

“These are miles comfier and cooler than Modibodi.” 

Joy
Perth, WA
★★★★★

“It actually works! No leaks all night.”

GG
IL
★★★★★

“I needed these. Comfortable, smart, and no stain anxiety.”

Asha
WI