Our models Ayla & Olivia are both wearing a size Medium.

Symon is wearing a size 3XL.

We recommend measuring yourself, and not going by your standard Aussie size. Each style and pair will vary, so please check this if ordering multiple styles.

🩸 1x Ribbed High Rise (FREE 🎁)
🩸 1x High Waisted Brief Period Undie
🩸 1x Boyfriend Brief
🩸 1x Overnight Period Undie (FREE 🎁)
🩸 1x Heavy Boyshort

Soft, secure, and designed for comfort — perfect to wear all day or all night.

How to claim your FREE pairs:

🎁 Get 1 FREE pair: Add 3 single pairs to your cart and the discount will automatically apply to 1 pair.

🎁 Get 2 FREE pairs: Add 5 single pairs to your cart and the discount will automatically apply to 2 pairs.

You can bleed directly into these beauties — no extra protection needed 🩸

For best results, change your period undies every 6–8 hours (or more frequently if you have a heavy flow). They’re perfect for a full day at work, relaxing at home, or even overnight!

Be sure to wash your undies regularly, and always give them a quick rinse before popping them into the machine.

For the most hygienic clean, follow these simple steps:

1. 
   Pre-rinse with cold water
   
2. 
   Machine wash under 30°
   
3. 
   Gently stretch them out for the comfiest fit
   
4. 
   Hang to dry (avoid tumble drying)

Made from 78% Nylon, 22% Spandex. Inner layer (Polyester)

Did you know that over 12 billion pads and 7 billion tampons end up in landfill every year? The average person with a period uses around 11,000 disposable pads, tampons, and liners in their lifetime. By switching to AuntFlo, you’re choosing a future that’s kinder to your body and the planet.

Our period undies are also PFA-free — PFAs are not used anywhere in the design or production of AuntFlo products.

As per our 30 Day Risk-Free Trial, first time customers can try one garment from your first order risk-free.