Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch
Scarlet Period Invisible Thong | Like a panty liner, PFAS-free, Soft with 360° stretch

Scarlet Period Invisible Thong

$22.00
IN THE MEDIA
IN THE PRESS

You have questions. We have answers.

How do they work?

Scarlet Period Underwear is designed to fit like normal underwear, and feature a multi-layered leak-proof technology that wicks away moisture, absorbs and contains fluid 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.

What does the absorbency level mean?

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

Light: Holds up to 3 teaspoons, which is equal to 2 regular tampons or 1 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: Holds up to 5 teaspoons, which is equal to 3 regular tampons or 2 pads. Go for this on your moderate days, or as extra defence on heavy days with our Period Cup. Try: High-Waisted Brief or Bikini Brief in Moderate

Heavy: Holds up to 7 teaspoons, which is equal to 4 regular tampons or 3 pads. It’s the heavy hitter, making them great to wear on their own, day or night. Try: Boyshort or Period Cup

Do I need to wear a cup, tampon, or liner 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. Take the time to explore a routine that works for you.

Do I have to wash them asap after use?

Nope – who’s that organised? That’s why our Laundry Bag is ace – simply throw your used pair into the bag and store for when you have a full load. Some people like to give them a quick rinse in the shower before popping into the bag, and others don’t. It won’t affect the lifespan of your underwear.

Once you are ready, simply toss them in on a cold wash cycle with mild detergent (no bleach!). DW, your other clothes will be just fine! For drying, you have two options: tumble dry on low or hang them out to dry in the sun. 

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?

This is a new way to period, and we understand fit may take a couple of goes to get into the swing of things. So, we have a 30-day risk-free trial to support you to find the perfect pair. Basically, if it’s your first time shopping with us and you’re not happy with your product, you may be eligible to claim a refund on that product, even if it’s used. Just 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 or letter sizing so no confusion (ie. Our large is a 12).

When in doubt, we advise to size up. Still confused? You can also email us for help at support@scarletperiod.com.

Customer Reviews

Based on 60 reviews
95%
(57)
2%
(1)
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(1)
0%
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2%
(1)
R
Rose R
The GOAT

I’ve tried bonds, rudie, Aunt Flo, love Luna, modibodi and pelvi. These are so ridiculously thin/flexible but still somehow absorbing and amazing for under gym tights. I’m hanging out for a mid rise and a cheeky cut version. So happy to find my brand

E
Emily

These are the best undies I’ve ever bought! I’ve been searching for a pair like these for ages. The cut is perfect, they sit comfortably, and are flattering. The thong is the ideal width, and the material is soft and smooth under clothing. I’ll be wearing them every day, not just for light periods. These should be the standard for all undies!

I’m going to buy a lot more pairs and tell everyone else to do the same. I love them!

E
Emily

These are the best undies I’ve ever purchased! I have been looking for so long for a pair like these! The cut is perfect, they sit so comfortably and are flattering, the thong is the ideal width, the material is soft and smooth under clothing. I’ll be wearing them every day - not just for light period days - these should be the standard for all undies!

I’m going to buy a lot more pairs and tell everyone else to as well. Love them!

A
Addison Nichols
GOAT

This thong has entered the chat…

S
Scarlett Ward
Chef's kiss

You’d never guess it’s period wear. Looks like my skims lol

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