Name: Classic period brief
Brand: Fri Period
SKU: FB1-BK-XS
Price: 29.0 USD
Availability: InStock

Experience the ultimate period comfort & confidence

Breathable organic cotton & bamboo

Ethically & sustainably made

Size —

Size chart

Size Chart

For more detailed sizing and measuring help, visit click here.

Size	US Dress Size	Waist Circumference (inches)	Hip Circumference (inches)
XS	0	24-26	33-36
S	2-4	26-29	37-39
M	6-8	30-32	39-41
L	10-12	32-35	42-45
XL	12-14	36-39	46-48
XXL	14-16	39-43	48-51
XXXL	18-20	43-57	51-55

2XL

3XL

US shipping: $5 flat rate or FREE when you spend $100

Hassle-free returns

Our most popular period underwear

Holds up to 3 tampons’ worth of fluid
Breathable, body positive gusset eradicates stain shame
Easy to care for - simply rinse, wash, repeat!

A classic for a reason! The universally flattering shape and soft, breathable fabric offers the perfect balance of comfort and support, no matter your flow.

Designed to suit all body types and flows, the high-tech breathable core keeps leaks at bay and the printed gusset empowers you to embrace your natural cycle.

Ethically made with PFAS-free material for your comfort & safety.

Here are the full details:

Lining: 95% organic cotton, 5% spandex | Outer Layer: 95% natural bamboo, 5% spandex | Inner Core: 80% polyester, 20% nylon with breathable PUL.

For more information about our fabric choices, click here.

After wearing, rinse in cool water until it runs clear, then machine wash at a low temperature.

Don't use softener or bleach. Hang or lay flat to dry. Discover our best tips and hacks here.

Supply chain transparency means knowing exactly where our products come from and how they’re made, giving you peace of mind with your purchase.

At Fri Period, we believe that ethical production and responsible sourcing are a non-negotiable, ensuring that each pair of period underwear aligns with our commitment to sustainability and social impact.

We partner with a factory in China that meets the highest standards of testing and certification.

This factory is committed not only to quality, sustainable and ethical production, but also to supporting menstrual equity, actively working to reduce period poverty.

Each pair of Fri Period underwear is made with care, in a certified facility that shares our values of transparency and fair labor practices.

New to period underwear? You probably have questions! We've answered the most popular ones right here.

Still unsure? Reach out to us at hello@friperiod.com and we will get back to you as soon as we can! 🩷

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Breathable fabric ensures your comfort

Printed gusset eliminates stain shame

Made without using PFAS or other nasties

Moderate to heavy flow

Machine washable

Classic period brief

Size Chart

Our most popular period underwear

Customer Reviews

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