Fri Period Boxers
Stay comfy, dry, and leak-free even on your heaviest days.
Meet the Fri Period Boxer Briefs, your new go-to for comfort, confidence, and freedom during your cycle. Designed with breathable organic cotton and bamboo, they feel just like your favorite everyday underwear while holding up to 4 tampons’ worth of flow. The unique printed gusset helps mask stains (goodbye, “stain stress”) while leak-proof layers keep you fresh and secure day or night.
Made ethically and free from PFAS or harsh chemicals, these boxers are as kind to your body as they are to the planet. Whether for periods, postpartum, light leaks, or simply all-day comfort, Fri Period underwear keeps you supported, empowered, and worry-free—every single day of the month.
Highlights
- The comfiest period you'll ever have!
- Absorbs up to 4 tampons’ worth of flow
- Leak-free protection day and night
- Soft bamboo and organic cotton blend
- Reusable and PFAS-free for peace of mind
- Eco-friendly and waste-reducing design
Product Specs
- Holds up to 4 regular tampons or pads worth
- Machine washable - simply wear, wash and repeat
- Breathable, soft, and extremely comfy
- Made without nasty chemicals (like PFAS)
- Full-bum, high-waist design
- Made with organic cotton & bamboo
- Printed gusset blends and conceals stains
What's Included
- 1 x Fri Period Boxer
Shipping
For U.S. customers, shipping is a flat $5 or FREE when you buy 4 or more. Orders are processed within 1–2 business days.
Returns
If you're not happy with your Fri Period product, we'll do our best to make it right. We have a 30-day hassle-free returns policy. We also do a free size exchange for first time buyers.
FAQs
What materials are used?
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.
Are these safe and chemical-free?
Yes! These are made without PFAS or other harmful chemicals.
Do they feel bulky?
Not at all. They feel just like regular underwear, with soft, breathable fabric and no stiffness.
Can I wear these all day?
Yes, many users report wearing them for 8-12 hours comfortably - even on heavier days.
How do I wash them?
Rinse in cool water until it runs clear, then machine wash on low and air dry. No bleach or softener.
What if I have front-heavy bleeding?
These briefs provide extended front coverage to help prevent leaks, even if you tend to bleed toward the front.
Are they good for sleeping?
Absolutely! Their full coverage and leakproof design make them a great overnight option.
Meet the Maker
Our Story
Two Moms on a Mission to Make Periods Cleaner, Comfier and More Planet-Friendly!
We created Fri Period because we wanted something better for ourselves, for our daughters, and for the planet. We loved the idea of period underwear but were frustrated by the lack of transparency, the use of toxic chemicals like PFAS, and the fact that they stained easily. We knew we could do better. Fri Period solves all of that: it’s ethically made, designed for real bodies, and features a printed gusset that helps eliminate “stain stress.” Since launching in 2023, we’ve helped thousands of people feel more comfortable, secure, and proud of their periods. Our goal is simple: to offer safe, sustainable period care that’s good for your body and kinder to the planet - because we all deserve better!