"A pair of swim shorts is a great option with additional coverage that stays in place while you lounge, surf or swim."
Light 
Dive confidently with Scarlet's innovative period-approved swimwear featuring a flattering high waist and built-in leak-proof protection.
Innovative period-approved swimwear with a flattering high waist and stay-in-place booty so you can catch waves in style with confidence.
Dive in knowing you have 2 teaspoons of protection (which is roughly equal to up to 1 regular tampons), making them leakproof for light flow days and spotting, and great as a backup on heavier days.
Designed with built-in leak-proof protection, these boy short swimwear bottoms use luxe ribbed recycled polyester to stop your flow from going out and water getting in.
Machine washable and reusable, they’re an eco-friendly and cost-effective alternative to disposable pads and tampons.
After use, rinse in cold water until it runs clear. Machine wash cold with mild detergent, do not use bleach or fabric softener. Line dry or tumble dry on low.
90% Recycled Polyester, 10% Spandex, and a Polyester Quick Dry Gusset. Free from added chemical treatments, including PFAS (independently lab tested).
We are committed to making mindful and sustainable choices which are good for your body and have big payoffs for the environment, which is why we’ve sourced recycled polyester for our swimwear.
Scarlet is a proud member of 1% for the Planet, joining a global community of brands and individuals giving back to the environment.
Scarlet Period Swimwear is designed to fit like normal swimwear, 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 tampons which means it can safely hold more liquid, and last for years not hours.
Super Light: Holds up to 1 teaspoon, which is equal less than 1 regular tampons or 1 liner. It’s the perfect everyday underwear for light leaks and discharge, even when you’re not on your period.
Light: Holds up to 3 teaspoons, which is equal to 2 regular tampons or 1 pad, making them perfect for saving you from pesky drips, discharge, and lighter flows.
Moderate: Holds up to 5 teaspoons, which is equal to 3 regular tampons or 2 pads. Wear on moderate dates, or as extra defence on heavy days with our Period Cup.
Heavy: Holds up to 7 teaspoons, which is equal to 4 regular tampons or 3 pads, making them great to wear on their own, day or night.
Depending on the absorbency level you choose and the heaviness of your flow, you can wear our period swim briefs 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.
We also recommend travelling with a water-resistant travel bag such as our Toiletry Bag, so you can always pop them away and rinse when you're home if you need to.
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!
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.
We get it — sizing for bottoms is anything but standardised. Which is why this size guide will help break it down for you. For extra ass-urance, make sure to whip out your trusty measuring tape. (Most likely stashed at the bottom of your junk drawer.)
Two things to note:
Still confused? Click for more information on:
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.
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Measure your waist and hip as per the line to find the right size for you.
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| AUS | 6 (XS) | 8 (S) | 10 (M) | 12 (L) | 14 (XL) | 16 (XXL) |
| US | 2 | 4 | 6 | 8 | 10 | 12 |
| UK | 6 | 8 | 10 | 12 | 14 | 16 |
| EU | 34 | 36 | 38 | 40 | 42 | 44 |
| Waist | 61 | 66 | 71 | 76 | 81 | 86 |
| Hip | 86-88 | 89-91 | 94-96 | 99-101 | 104-106 | 109-111 |
