Scarlet Period High-Waisted Brief | 3-Pack + Laundry Bag
Scarlet Period High-Waisted Brief | Leakproof, PFAS-free, Moderate Absorbency
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Period High-Waisted Brief | Leakproof, PFAS-free, Moderate Absorbency
Scarlet Period Underwear Laundry Bag | Lightweight mesh delicates washing bag
Scarlet Period High-Waisted Brief | 3-Pack + Laundry Bag
Scarlet Period High-Waisted Brief | Leakproof, PFAS-free, Moderate Absorbency
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Moderate Flow Period High-Waist Brief – Full Coverage, Comfortable
Scarlet Period High-Waisted Brief | Leakproof, PFAS-free, Moderate Absorbency
Scarlet Period Underwear Laundry Bag | Lightweight mesh delicates washing bag

3-pack Period High-Waist Brief

Reliable moderate coverage. Ready every cycle.

$79.00 $85.00

A comfy high-waisted brief with full coverage period protection for moderate flow days. Because one great pair is never enough.

    PFAS-Free & Toxin-Free
    Full Coverage & Comfort
    Leak-Proof, Quick-Dry Gusset
    Absorbs Medium to Heavy
Scarlet Period High-Waisted Brief (Size)
Period Cup
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Meet the Scarlet Period High-Waisted Brief 3-Pack - your go-to for medium to heavy flow days. Made with buttery-soft modal cotton for full coverage and maximum comfort.

⭐ High-waisted comfort: Sits smoothly at the waist for extra coverage and a flattering fit.

⭐ Medium to Heavy Absorbency: Holds up to 5 teaspoons (approx. 3 tampons) with multi-layered leak-proof protection.

⭐ Soft Modal Cotton: Lightweight, breathable, and stretchy for all-day wearability.

⭐ Fast-Drying Gusset: Quick-dry inner layer keeps you fresh, dry, and confident.

✨ Rinse in Cold Water: After wearing, rinse in cold water until it runs clear to keep them fresh.

✨ Machine Wash Cold: Toss them in with mild detergent (no bleach or fabric softener, please).

✨ Dry with Ease: Line dry or tumble on low - no need for extra care.

✨ Need more info? Please read our complete guide to caring for your period underwear here.

✨ 45% Modal, 45% Cotton, 10% Spandex for perfect stretch

✨ Absorbent gusset made from quick-drying Polyester/PUL

✨ Free from toxic chemicals like PFAS

✨ Independently lab-tested for safety and peace of mind

✨ Fit Note: Our underwear runs on the slightly smaller side - if you're between sizes, size up.

✨ Teen-to-Adult Fit: Our sizing is unique - please refer to both the numerical (e.g. 10, 12) and letter sizing (e.g. M, L) in our guide.

✨ Australian Sizing: We use AU sizes - international customers, check our Size Guide.

✨ Still Unsure? Contact us for advice. We love a chat!

Did you know that over 12 billion pads and 7 billion tampons end up in landfills yearly? By choosing Scarlet, you're supporting a more sustainable future - where self-care and sustainability go hand in hand.

✨ High-Quality, Safe Fabrics: Made with care, free from PFAS and harmful chemicals, and independently lab-tested for your safety.

✨ Eco-Conscious Manufacturing: Crafted with a focus on quality and reducing environmental impact.

✨ Recyclable Packaging: Minimal waste for a cleaner world.

✨ 1% for the Planet: Scarlet is proud to contribute to environmental stewardship with every purchase.

Size Chart

Size chart for 3-pack Period High-Waist Brief
Scarlet Period High-Waisted Brief | 3-Pack + Laundry Bag

3-pack Period High-Waist Brief

$79.00 $85.00
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Models wearing Scarlet Period High Waisted Brief

Voted the most comfortable period undies you’ll ever own (by us)

The comfiest undies to wear beneath high-waisted pants, jeans and skirts. (We checked.)

Our High-Waisted Brief provides full coverage on days with moderate flow. Made from buttery-soft fabric, it prevents unwanted sagging, digging in, or sweating.

  • Feel and look like normal underwear
  • Comfy high-waisted style (great for bloating!)
  • Super soft, superior modal cotton
  • Absorbs the equivalent of 3 tampons or 2 pads
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Your Questions, Answered

How do they work?

Scarlet Period Underwear is designed to fit like normal underwear and features multi-layered leak-proof technology that wicks away moisture, absorbs fluid, and contains it to keep you dry and protected. 

The built-in leak-proof technology is harder working than disposable pads which means it can safely hold more liquid and last for years not hours. Loved by all; you can read some reviews.

Do I need to wear a cup, tampon, or pad too?

Depending on the absorbency level you choose and the heaviness of your flow, you can wear our period panties on their own or as backup protection along with a Period Cup or tampon.

What does the absorbency level mean?

Super Light: Holds up to 1 teaspoon, which is equal to less than one regular tampon. Think of it as a new-age panty liner, so it’s great for spotting, light leaks and discharge. Try: Invisible Thong

Light: Holds up to 3 teaspoons, which is equal to 2 regular tampons or one pad. This is for light days to save you from pesky drips, discharge, and lighter flows. Try: G-String or Bikini Brief in Light-Moderate

Moderate: Holds up to 5 teaspoons, which is equal to 3 regular tampons or 2 pads. Go for this on moderate days or as extra defence on heavy days with our Period Cup. Try: High-Waisted Brief or Bikini Brief in Moderate-Heavy

Heavy: Holds up to 7 teaspoons, which is equal to 4 regular tampons or 3 pads. Our heavy hitters are great to wear on their own, day or night. Try: Boyshort or Period Cup

How do I wash them?

After use, rinse them in cold water (we recommend in the shower) until they run clear. Then, machine wash in cold water with mild detergent (no bleach!). Try our Laundry Bag to safeguard them on laundry day. Then just hang out to dry (the sunnier the better) or tumble dry on low - that’s it!

TIP: If it’s your first wear, pop them in the washing machine with your next cold cycle - washing them before wearing activates their absorbency even more.

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 also email us for help at support@scarletperiod.com.

What is your 30-day risk-free trial?

We offer a 30-Day Risk-Free Trial for first-time shoppers for one pair of underwear. If you’re unsatisfied or have sizing concerns, email us at support@scarletperiod.com.
★★★★★

"Surprisingly just as discreet as the G-string ... looking like any regular pair of Cotton briefs."

Beauty Heaven

★★★★★

"This Aussie-based label is putting the cool into period knickers."

Refinery29

★★★★★

"The modal cotton fabric is not only comfy, it’s better for the environment as the creation process doesn’t use as much water."

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