Three women wearing Fri Period underwear

Three women wearing fri period's pfas free period underwear

Australia's Comfiest Period Undies

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4.9 out of 5 | Loved by 1000+ customers

Award-Winning Period Underwear

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

Classic Briefs

$37.00

Period Boxers

$42.00

Low-Rise Hipsters

$35.00

Waterproof Wet Bag

$19.00

Made without PFAS or nasty chemicals

Icon showing Fri Period underwear's triple layer tech

Leak-proof, breathable & ultra absorbent

Icon showing Fri Period underwear is eco friendly

Ethically made & planet-friendly

Made without PFAS or nasty chemicals

Leak-proof, breathable & ultra absorbent

Ethically made & planet-friendly

Person wearing a patterned shirt and Fri Period boxer briefs, standing in a room with a chair and plant.

Person taking a mirror selfie wearing Fri Period's Low-rise Period Hipsters

Woman wearing a white sweatshirt and Fri Period underwear against a white wall.

Person wearing a leopard print shirt and Fri Period Boxers indoors.

Period Comfort You Can Count On

With 1000+ happy customers, we're confident you'll LOVE our products. But just in case, we have a hassle-free returns policy.

5 Star Reviews

Easy Returns

Secure Payment & Checkout

Caring for them?
Easier than you think.

1

💧 Rinse

After wearing, rinse in cold water until it runs clear.

2

🫧 Wash

Pop them in with your normal laundry. Cold cycle (avoid softener or bleach).

3

🌤️ Dry

Hang or lay flat to dry. Ready for next wear (and many after for 2+ years)!

Choose Better for the Planet

No Waste

Reusable for 2+ years

One Tree

Planted For Every Order

Recycling symbol in teal on a white background

Eco

Compostable packaging

No Waste

Reusable for 2+ years

One Tree

Planted For Every Order

Eco

Compostable packaging

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

Alana, WA

'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 everything. Definitely recommend.'

Noela, Qld

'I've tried several brands of period underwear, but this one really stood out. The coverage was 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.'

Havva, Perth