Soft, safe & supportive

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

Our best-selling period underwear is perfect for postpartum bleeding, bladder leaks, and for when your period eventually returns.

EXPLORE COLLECTION →

Excellent 4.9 | 1000'S of Happy Periods

"Wearing these after birth was a gamechanger"

Renata T, 5 months postpartum

Shop Postpartum-Friendly Styles →

Organic Cotton & Bamboo Period Underwear

Your Postpartum MVPs

View all

Classic Period Brief - Fri Period - Organic Cotton and Bamboo

Shop now

Classic Period Brief

$29.00

Shop now

Shop now

Low-Rise Hipster

$27.00

Shop now

Shop now

Period Boxers

$34.00

Shop now

Made by mums, for mums

Motherhood is beautiful - but it’s also messy, leaky, and unpredictable. Fri Period underwear are made to support you through it all: healing, feeding, shifting hormones, and surprise bleeds. Whether you’re a first-time mom or adding to your crew, we’re with you.

The Care You Deserve

Icon showing Fri Period underwear's triple layer tech

Leak Free

Each pair does the work of up to 3 tampons or pads, so you can feel confident all day (& night!) long.

Machine Washable

Simply wear, wash, repeat!

Breathable

Made from breathable organic cotton and bamboo

Clean & Non-toxic

Ethically made without using harmful chemicals like PFAS.

No Stain Stress

Printed gusset eliminates stains (and looks cute!).

Designed To Last

With proper care, your Fri Periods will last years.

Leak Free

Each pair does the work of up to 3 tampons or pads, so you can feel confident all day (& night!) long.

Machine Washable

Simply wear, wash, repeat!

Breathable

Made from breathable organic cotton and bamboo

Clean & Non-toxic

Ethically made without using harmful chemicals like PFAS.

No Stain Stress

Printed gusset eliminates stains (and looks cute!).

Designed To Last

With proper care, your Fri Periods will last years.

SHOP ALL

As Seen In

Classic Period Brief - Fri Period - Rear view, full gusset coverage

Classic Period Brief - Fri Period - PFAS-free organic cotton+bamboo period underwear

Classic Period Brief - Fri Period - Period Underwear with a gusset that hides any stains

Fri Period - Period underwear in it's compostable and biodegradable packaging

A review of Classic Period Brief - Fri Period - A customer shares her testimonial

Classic Period Brief - Fri Period underwear sits high on the waist

Review of Classic Period Brief - Fri Period

$29.00

Shipping calculated at checkout.

...

......

...

[{"id":50506176102684,"title":"XS","option1":"XS","option2":null,"option3":null,"sku":"FB1-BK-XS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - XS","public_title":"XS","options":["XS"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176135452,"title":"S","option1":"S","option2":null,"option3":null,"sku":"FB1-BK-S","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - S","public_title":"S","options":["S"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176168220,"title":"M","option1":"M","option2":null,"option3":null,"sku":"FB1-BK-M","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - M","public_title":"M","options":["M"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176200988,"title":"L","option1":"L","option2":null,"option3":null,"sku":"FB1-BK-L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - L","public_title":"L","options":["L"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176233756,"title":"XL","option1":"XL","option2":null,"option3":null,"sku":"FB1-BK-XL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - XL","public_title":"XL","options":["XL"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176266524,"title":"2XL","option1":"2XL","option2":null,"option3":null,"sku":"FB1-BK-XXL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - 2XL","public_title":"2XL","options":["2XL"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":50506176299292,"title":"3XL","option1":"3XL","option2":null,"option3":null,"sku":"FB1-BK-XXXL","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Classic Period Brief - 3XL","public_title":"3XL","options":["3XL"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]},{"id":53177112592668,"title":"4XL","option1":"4XL","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Classic Period Brief - 4XL","public_title":"4XL","options":["4XL"],"price":2900,"weight":62,"compare_at_price":null,"inventory_management":"shopify","barcode":"","requires_selling_plan":false,"selling_plan_allocations":[]}]

Hear from other mothers

★★★★★
I use these as period underwear but wish I had them when I had my baby as they would have made such a difference. Nobody should have to deal with those massive diapers or paper hospital pants!
Brigitte
Perth, Australia

★★★★★
OK wait how come nobody told me how game-changing period underwear are for postpartum? I kinda forgot I was even on my period!
Katie
Atlanta, GA