20% OFF & FREE SHIPPINGOn orders over $100

HASSLE-FREE RETURNS30 Days To Change Your Mind

ONE TREE PLANTEDFor Every Order

Three women wearing Fri Period underwear

Three women wearing Fri Period underwear

THE COMFIEST, NON-TOXIC

Period Underwear

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Excellent 4.9 | 1000+ Happy Periods

'Incredibly comfortable and breathable. The leak-proof protection worked perfectly.'

Alana, WA

'The quality of these are so much better than other period underwear brands.'

Grace, PA

'I have been wearing period pants from other brands for years but have never found any that are perfectly leakproof - until now!'

Clare, CA

'I am honestly blown away. Totally hassle free... these were SO comfortable and SO brilliant.'

Katie S.

Your Period Essentials

Classic Period Brief - Fri Period - Organic Cotton and Bamboo

Classic Period Brief - Fri Period underwear - Suitable for women of all shapes and sizes

Classic Briefs

$29.00

Period Boxers - Fri Period

Period Boxers - Fri Period

Period Boxers

$34.00

Low - Rise Hipster - Fri Period

Low - Rise Hipster - Fri Period

Low-Rise Hipsters

$27.00

Waterproof 2L washbag - Fri Period

Waterproof 2L washbag - Fri Period

Waterproof Wet Bag

$22.00

Non-toxic

OEKO-TEX certified fabrics

Icon showing Fri Period underwear's triple layer tech

Leak-proof

Holds 3+ tampons worth

Icon showing Fri Period underwear is eco friendly

Kinder

To your body & the planet

Non-toxic

OEKO-TEX certified fabrics

Icon showing Fri Period underwear's triple layer tech

Leak-proof

Holds 3+ tampons worth

Icon showing Fri Period underwear is eco friendly

Kinder

To your body & the planet

Impact that goes beyond a comfier period

Person holding a small plant with soil in their hands

A tree is planted for every order

Each pair prevents 100's of tampons/pads from landfill

Stack of green plastic bottles on a black background

No plastic packaging (our bags are 100% biodegradable)

Two brown bottles with hazardous material labels featuring warning symbols.

We avoid toxic chemicals that impact your health & hormones

Your Period Must-Haves

The female founders of Fri Period underwear with a customer

Small Business, Big heart

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.

Fri Period | Period Underwear For A Cleaner, Comfier Period