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Scarlet Everyday Pocket Brief in black, worn high on the waist, front pocket built for the rae heat pad
Scarlet Everyday Pocket Brief worn, high-waist 95% organic cotton brief with a built-in heat pad pocket
Back view of the Scarlet high-waist pocket period brief in black
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. 
Hands settling the white rae heat pad into black Scarlet briefs under open jeans
Scarlet Everyday Pocket Brief in black, worn high on the waist, front pocket built for the rae heat pad
Scarlet Everyday Pocket Brief worn, high-waist 95% organic cotton brief with a built-in heat pad pocket
Back view of the Scarlet high-waist pocket period brief in black
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. 
Hands settling the white rae heat pad into black Scarlet briefs under open jeans

High-Waist Everyday Pocket Brief

Normal undies. Built to hold rae

$22.00

Cramps don't wait until you're bleeding. This is the same high-waist cut and the same pocket that holds rae exactly where you want it, as normal undies, for the days you're not bleeding. Just undies. With a job.

    PFAS-free, lab-tested
    PFAS-free, lab-tested
    Built for rae, not adapted for it
    Built for rae, not adapted for it
    Not period undies. On purpose.
    Not period undies. On purpose.
    Sizes 6 to 18, 30 day trial
    Sizes 6 to 18, 30 day trial
Size
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Australian designed · PFAS-free · 30-Day Risk-Free Trial

We built the pocket for rae. Then it got obvious that plenty of the days you'd want heat aren't days you're bleeding.

So this is the same brief, made as normal undies. The pocket sits at the front of the high waist, holds rae flat and hands-free, and keeps rae off bare skin at the same time. Slip it in, switch it on, carry on.

How to wear it

1. Charge rae. Around 90 minutes on USB-C.

2. Pull the brief on, then slide rae into the front pocket. Curved side against you, wings sitting flat.

3. Switch it on through the fabric. Low runs 5+ hours, medium around 3, high around 2.

After that, you forget it is there, until someone asks why your stomach is warm.

Machine wash cold with a mild detergent.

No bleach, no fabric softener.

Line dry, or tumble on low.

These are not period undies. For bleeding days, wear the High-Waist Pocket Period Brief.

95% organic cotton, 5% elastane.

PFAS-free, independently lab-tested. Understand more about PFAS.

1% for the Planet. Scarlet is a member. A real commitment, not a sticker.

95% organic cotton. The part against your skin is grown, not spun out of petroleum.

Size Chart

Size chart for High-Waist Everyday Pocket Brief
Scarlet Everyday Pocket Brief in black, worn high on the waist, front pocket built for the rae heat pad

High-Waist Everyday Pocket Brief

$22.00
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Three women in black Scarlet underwear, two holding the white rae heat pad

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

The Pocket Brief was built to hold it, right where the cramps are.

rae is wireless and rechargeable, with three heat settings up to 50°C and 5+ hours on low. Slip it into the pocket and get on with your day.

  • Curved for comfort
  • Three heat settings, up to 50°C
  • Soft-to-touch, food-grade silicone
  • Made to pair with your Pocket Brief
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Your Questions, Answered

Can you wear a heat pad without period underwear?

rae will sit between your underwear and your clothes if the waistband is firm enough, but a pocket holds it flat and stops it travelling. That's the whole reason this brief exists.

Are the Everyday Pocket Briefs period undies?

No, and that's deliberate. These are normal undies with a pocket. If you're bleeding, wear the High-Waist Pocket Period Brief instead.

What's the difference between the Everyday Brief and the Pocket Period Brief?

Same cut, same pocket, same sizing, same 95% organic cotton. The Period Brief is period underwear. This one is normal underwear.

Do I need rae to wear these?

No. They're good underwear with an empty pocket, which is still just underwear. The pocket is there for when you want it.

Can you use a wearable heat pad when you're not on your period?

Plenty of people do. Heat is part of a lot of toolkits and rae makes it wearable, so it goes where you go. It's a comfort device, not a medical device.

Are these PFAS-free?

Yes, and independently lab-tested, which is the only reason we're allowed to say it.

What size should I get?

Your usual size. Sizes run 6 to 18, XS to XXXL, and the fit matches the High-Waist Pocket Period Brief, so if you own those, order the same.
★★★★★

“Pair [rae] with Scarlet’s undies with a built-in pouch, and you’ve got a period-care revolution on your hands.”

Sitchu

★★★★★

“rae’s cool factor doesn’t stop at just being cordless - it slides discreetly under clothes without any noticeable lumps.”

Women Love Tech

★★★★★

“I've been loving it … I popped it in the Pocket Undies while doing groceries, and it gave me such a sense of comfort.”

Refinery29

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