AWWA Heavy Organic Cotton Brief
AWWA Heavy Organic Cotton Brief
AWWA is the only other brand of underwear that we trust with our periods—ethically-made, sustainable, PFAS free & B Corp Certified. For a limited time, shop our capsule collection of AWWA’s bestselling styles at an unbeatable price for the holiday season.
Soft, sustainable period undies made with breathable, certified organic cotton. The Heavy Organic Cotton Brief is a mid-rise, full coverage cut that absorbs up to 5 tampons worth of flow. Feel good knowing you're wearing clean fibers next to your skin.
Details
Details
● Comfy full coverage, mid-rise cut
● Holds 5 tampons worth
● Best for moderate flow & overnight
● Machine washable
● B Corp Certified, sustainable and ethically made
● Leakproof, breathable, and PFAS-free (no detectable levels to 20 PPM)
Materials
Materials
Outer: 95% Organic cotton, 5% Elastane
Gusset Layer 1: 95% Organic cotton, 5% Elastane
Gusset Layer 2: 100% Polyester
Gusset Layer 3: 100% Polyurethane-laminated Polyester
Sizing & Fit
Sizing & Fit
Consult the size chart for best fit - AWWA plus sizes have a slightly different fit from Aisle underwear.
Shipping & returns
Shipping & returns
- $4.99 Priority Shipping on US & CA orders over $120
- Orders ship tariff-free in the US & Canada
- This item is final sale

Awwa Size Chart
Take your hip measurement for best results. For plus sizes, AWWA underwear has a different fit from Aisle underwear, so make sure you consult the size chart before choosing a size.
| Size |
Hip |
|
3XS |
29-31.5 |
|
2XS |
31.5-34 |
|
XS |
34-36 |
|
S |
36-38.5 |
|
M |
38.5-41 |
|
L |
41-43 |
|
XL |
43-46 |
|
2XL |
46-48 |
|
3XL |
48-50.5 |
|
4XL |
50.5-53 |
|
5XL |
53-56 |
Kia ora, We're AWWA
AWWA is New Zealand's first period underwear brand. Indigenous founded & female owned, we're here to unpack the stigma around periods and reconnect menstruators to their cycle.
AWWA is derived from the Māori word 'awa' meaning river or flow. Māori referred to their period as te awa atua - the divine river. AWWA offers a world where every person can feel divine and empowered during their period
Made with care, for you & the earth
Whether it's the natural, organic and recycled fabrics we use, our toxin-free & ethical manufacturing, or our carbon-reduction strategies - AWWA aims to live by its social & environmental mission.
Verified reviews from AWWA FANS
It feels a bit more plasticy than the aisle underwear, but I love all the coverage.
So comfortable, and great protection. Will be buying more of these in the future!
AWWA period underwear is a game changer! I don’t even have to think about my period throughout most of the day, and being able to bleed into a reusable product is a relief
Fit a little tight compared to aisles sizes but still great! Comfortable and full coverage. I’m so glad I tried period underwear. A serious game changer I won’t shut up about it
FAQ
How do I wash AWWA period underwear?
Simply rinse in cold water, then wash on a cold cycle with your normal clothes. Hang to dry. Avoid fabric softener as it leaves a residue that inhibits absorbency.
Where are AWWA period underwear made?
AWWA underwear is made in two factories in Sri Lanka and China. Both our partner factories pay a fair wage and have processes and practices in place to reduce their waste output, and source sustainable fabrics.
How do AWWA period underwear work?
AWWA period-proof underwear look and feel just like your normal underwear, but can absorb menstrual flow and stop leaks, thanks to our innovative fabric technology.
A soft, moisture-wicking organic cotton top layer draws fluid away from your skin and into the super-absorbent core, while the breathable, waterproof barrier prevents leaks. Our anti-microbial technology keeps you fresh and odor-free, all day long.