Scarlet Period High-Waist Swim Brief
Light 
eqv. 1 tampon
Our worry-free, period-proof swimwear lets you dive in with confidence. From beach to pool, splash without fear of leakage on light flow days.
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Leak-Proof Swim Protection -
High-Waisted, Flattering Fit -
Recycled, Eco-Friendly Fabric -
Sleek, Comfortable Design
Period Swim That Won’t Cramp Your Style.
Breaststroke? Freestyle? Doggy paddle? There are different strokes for different folks, but just one pair of Period Swimwear to help you lap with confidence.
Our High-Waisted Swim Bikini Brief is made with fast-absorbing, leak-proof technology. So you can hit the pool, the beach, the waterfall, and even the backyard sprinkler without stress, stains, or tampon strings poking out.
- Looks like normal swimwear
- Zero leaks, zero worries
- Made with 90% recycled material
- Chemical treatment-free, including PFAS
You have questions. We have answers.
How do they work?
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 on the magic of Period Swimwear.
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 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 on their own, day or night. Try: Boyshort or Period Cup
Do I need to wear a cup or a tampon too?
Depending on the heaviness of your flow, you can wear on their own or as backup protection with a Period Cup on moderate to heavy days.
If planning on swimming, we recommend travelling with a water-resistant travel bag such as our Toiletry Bag, along with your clean pair, so you can easily and cleanly do a switcheroo.
And if you are feeling Cup curious, you can click to learn more about how Period Cups work. They’re really not as scary as you think!
How do I wash them?
After use, give them a good rinse in cold water to remove any chlorine or salt water. 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 store them post-swim
We recommend travelling with a water-resistant travel bag such as our Toiletry Bag. Give them a good rinse to remove any chlorine or salt water, before stashing away. Once home, either machine wash in cold water with mild detergent or if wearing them again soon, hang them out to fully dry (the sunnier the better).
Why buy a set?
Save money and stay ready with our Brief + Swim BFFs Set! It features these killer High-Waisted Period Swim Briefs for in the water, a pair of Period Bikini Briefs for when you’re out, and a waterproof Toiletry Bag to store your wet togs in until you get home.