Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period Pocket Underwear are designed with a discreet pocket to securely carry your rae heat device so you can access pain relief on the go.
Scarlet Period Pocket Underwear are made from breathable and buttery soft organic cotton and is free from added chemical treatments like PFAS (always!)
Scarlet Period Pocket Underwear - leak-proof, ultra-soft and have a discreet pocket to hold your rae heat device.
Scarlet Period Pocket Underwear keeps the rae heat device away from your skin to protect your skin for ongoing use, and it makes it move with you wherever your day takes you. 
Shop Scarlet Period Pocket Underwear - available in light and moderate
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period Pocket Underwear are designed with a discreet pocket to securely carry your rae heat device so you can access pain relief on the go.
Scarlet Period Pocket Underwear are made from breathable and buttery soft organic cotton and is free from added chemical treatments like PFAS (always!)
Scarlet Period Pocket Underwear - leak-proof, ultra-soft and have a discreet pocket to hold your rae heat device.
Scarlet Period Pocket Underwear keeps the rae heat device away from your skin to protect your skin for ongoing use, and it makes it move with you wherever your day takes you. 
Shop Scarlet Period Pocket Underwear - available in light and moderate

Scarlet Period High-Waisted Pocket Brief

$30.00

Available in Light and Moderate

Leak-proof, ultra-soft. It’s everything you love about our Period Undies, plus a discreet pocket to hold your rae heat device.

  • Fast-absorbing
    Fast-absorbing
  • Leak-proof
    Leak-proof
  • Comfy & Body-safe
    Comfy & Body-safe
  • Machine washable
    Machine washable
Upgrade your order
Keep your undies safe with a Scarlet Period Laundry Bag +$10
ADD TO ORDER
Item will be included
Upgrade your order
Stay dry with a Scarlet Period Waterproof Toiletry Bag +$10
ADD TO ORDER
Item will be included
All the Details

Designed with a discreet pocket to securely carry your rae heat device so you can use it on the go. It keeps the device off your skin for continuous protection and moves with you throughout the day. They come in two absorbency levels:

👉 Level 1 (Light - Moderate) absorbs the equivalent of 2 heavy tampons or 1 heavy pad

👉 Level 2 (Moderate- Heavy) absorbs the equivalent of 3 heavy tampons or 2 heavy pads.

Crafted from breathable, buttery-soft organic cotton, they're free from harmful chemicals like PFAS. Featuring fast-absorbing, 4-layer technology, it wicks moisture and locks in fluid for ultimate protection.

Care Instructions

After use, rinse in cold water until it runs clear. Machine wash cold with mild detergent; do not use bleach or fabric softener. Line dry or tumble dry on low.

Read more about cleaning your Period Underwear. 

Made From ...

95% Organic Cotton, 5% Elastane and a Polyester/Elastane/ PUL Quick Dry Gusset. Free from added chemical treatments, including PFAS (independently lab tested).

Good for Planet

Did you know that over 12 billion pads and 7 billion tampons end up in landfills each year? The average person with a period uses around 11,000-period products in their lifetime. By choosing Scarlet, you’re not only embracing a new era of period self-care but also supporting a more sustainable future.

Scarlet is proud to be a member of 1% for the Planet, joining a global movement committed to making a positive impact on our environment. With every product, from rae Heat Pad to our other period self-care solutions, you’re making a choice that’s good for you and the planet.

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Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear
Scarlet Period rae Heat Pad fits neatly into our Period Pocket Underwear

Scarlet Period High-Waisted Pocket Brief

$30.00
IN THE MEDIA
IN THE PRESS
Three models wear scarlet rae heat pad and period pocket undies

Have you met rae - the heat pad that goes with your flow?

To be safe, let’s do some formal introductions…

rae is wireless and rechargeable, with a sleek, comfy design. Designed with three heat settings that go up to 50°C, it lasts up to 5 hours, and is totally wireless.

  • Curved for your comfort
  • Three heat settings, up to 50 degrees
  • Soft high-quality silicone
  • Wear with your Period Pocket Underwear
Learn more

You have questions. We have answers.

Umm, what is rae?

rae is THE heat pad that’s here to go with your flow. Designed in Australia, rae is slim, soft, and curved for extra comfort. With three heat settings and flexible wings that hug your body, it’s USB-rechargeable, splash-proof, and fits right into our custom period undies pouch.

How do I wash them?

After using them, rinse them in cold water until they run clear. We love taking them straight in the shower with us. (That’s peak efficiency.) Then, machine wash on a cold setting with a mild detergent. Avoid bleach! And for extra protection, pop them in our Laundry Bag.

Now just hang them out in your garden, courtyard, or sun-soaked balcony. Or if it’s raining on laundry day, tumble dry them on a low setting.

Can I use the undies without rae?

We’re not here for rules, so you do you boo! They do have additional fabric for the pocket at the front so if not using with rae, you might prefer our Bikini Brief or High-Waisted Brief.

What do the different absorbency levels mean?

Our Period Pocket undies come in two absorbencies. Level 1 (Light—Moderate) absorbs 3 teaspoons of fluid (roughly equal to 2 regular tampons or 1 regular pad) and level 2 (Moderate—Heavy) absorbs 5 teaspoons of fluid (approximately equal to 3 regular tampons or 2 regular pads).

Can I use rae without the undies?

rae is designed to get hot, so we do recommend using rae with them or otherwise over your undies. If using directly on the skin, start at the lowest setting and monitor your comfort.

How do I pick the right size for me?

We get it — sizing for bottoms is anything but standardised. Which is why this size guide will help break it down for you. Make sure to check both our numeric and letter sizing so no confusion (ie. Our large is a 12).

When in doubt, feedback tells us better to size up. Still confused? You can email us for help at support@scarletperiod.com.
★★★★★

“I have been wearing these undies with an icepack in the pouch for post-partum probs!”

- Marg

★★★★★

“Scarlet thinks of everything. So good. So easy.”

– Evie

★★★★★

“A pocket for a heat pad? It’s one of those things you don’t think you need til you try it. Then you never want to live without it!”

– Alice