Scarlet Period G-String | 3-Pack Leak-proof PFAS-free underwear + Laundry Bag

Scarlet Light Flow Period G-String – Leak-Free, Comfortable Protection

Scarlet Period G-String | Leakproof, Light Absorbency, PFAS-free, Organic Cotton

Scarlet Period Underwear Laundry Bag | Lightweight mesh delicates washing bag

3-pack Period G-String

Light days covered. No rotation stress.

$68.00 ~~$76.00~~

Dare to bare, period-proof with Scarlet Period G-String! It'll save you from pesky drips, discharge, and light flows.

Organic Cotton Softness

PFAS-Free & Toxin-Free

Comfy & Body-safe

Save $$ with Sets

Scarlet Period G-String (Size)

6 (XS) 8 (S) 10 (M) 12 (L) 14 (XL) 16 (XXL)

Why You'll Love it

The Scarlet Period G-String 3-Pack is designed for light flow days, spotting, or as a discreet backup - so you can wear what you want, when you want.

⭐ Invisible Under Clothes: Seamless, G-string cut vanishes under even the slinkiest fits.

⭐ Light Absorbency: Holds up to 3 teaspoons (2 tampons) for spotting, discharge, or light flow days.

⭐ Soft Organic Cotton: Made from GOTS-certified, breathable cotton that’s gentle on skin.

⭐ PFAS-Free Peace of Mind: Independently lab-tested and free from harmful chemicals.

⭐ Sustainable Everyday Option: A planet-friendly swap for liners or backup protection.

⭐ Bonus Laundry Bag: Keeps delicates safe and makes wash day a breeze.

Easy Care, Zero Fuss

✨ 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.

Materials & Composition

✨ 95% GOTS Certified Organic Cotton for a soft, breathable feel

✨ 5% Spandex for the perfect amount of stretch

✨ Quick-dry gusset made from Polyester/PUL for leak-free protection

✨ No toxic chemicals like PFAS. Independently lab-tested.

Size & Fit

✨ 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!

Planet-Friendly Practices

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.

3-pack Period G-String

$68.00 ~~$76.00~~

Black bikini set worn by a model on a plain background

Like Wearing Nothing At All

We took the classic G-String and made it super comfy – and period-proof!

Our G-String provides leak-free protection for drips, discharge, and lighter flows. Made with buttery-soft fabric, it gives zero VPL. Because tight pants look great on you.

Keeping VPL at bay throughout your bleed
Super soft GOTS Certified Organic Cotton
Chemical treatment-free, including PFAS
Mid-rise silhouette with minimal bum coverage
Absorbs the equivalent of 2 tampons or 1 pad

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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.

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.

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.

★★★★★

"If you prefer a G-string but still want protection against leakages and spills, this pair is a great option."
NEWS

★★★★★

"Sexy but still supportive. Great period underwear for light flow days that won't hinder your outfit."
Body & Soul

★★★★★

"Among their best picks? Their Period G-String is great for a no-show option that sits well under any clothing."
Harper's Bazaar