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. It is loved by all; you can read some reviews.

Super Light: Holds up to 1 teaspoon, which is equal to less than 1 regular tampon. 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 dates or as an 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 alone, day or night. Try: Boyshort or Period Cup

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.

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!). Use the 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! 

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.

Scarlet Period Swimwear features a multi-layered leak-proof technology that absorbs and contains fluid. An added waterproof inner layer then works to stop any menstrual fluid from leaking out and water from getting in. Click to read more about the magic of period swimwear.

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). And when in doubt, feedback tells us it is better to size up.

Still confused? Click for more information on our Returns Policy and our 30-Day Trial Policy. You can also email us for help at support@scarletperiod.com.