Period Underwear made different. 
Not All Period Thongs Are Created Equal.
Other period thongs? Minimal coverage and generally only 1 layer of absorbency for very light flow.
A standard thong with a pad? Not exactly ideal for burpees or box jumps.
Double Undies? Our unique winged gusset combines extra absorbent coverage and with 2 layers of absorbency, it's like getting full brief protection, but in a thong.
And if thongs aren't your thing, our briefs offer the same innovative technology in a different style.
Finally, period underwear designed with movement in mind.
Meet the Winged Gusset. Designed Differently for a Reason.
Not all period underwear is created equal.
A traditional thong offers very little coverage and only a single layer of absorbency. And most period underwear isn't designed with high-impact movement as its main priority.
That's why we created our unique winged gusset.
Our innovative design provides a wider absorbent area than a traditional thong, combining moisture-wicking fabric, double layer of built-in absorbency and a waterproof barrier, giving you the protection where you need it most.
And we've carried that same clever technology through to our briefs, so you can choose the style that suits you.
Extra coverage. Built-in absorbency. Designed for movement.
Who says period underwear has to be big, bulky or boring?
Our absorbent performance underwear designed for women who move. Whether you're lifting weights, running, jumping or simply getting on with your day, your period shouldn't dictate what underwear you wear or how you move.
It all started with our innovative winged gusset thong, designed to provide extra absorbent coverage without compromising on your favourite underwear style.
And because not everyone loves a thong, we've incorporated that same innovative winged gusset technology into our briefs too!
Your period. Your sport. Your underwear. Your choice.
Your Period Shouldn't Hold You Back.
You've got a workout planned. A competition coming up. A run to get through.
And then your period arrives.
Suddenly you're thinking about what underwear to wear, whether your pad will move, or whether your usual period undies will feel bulky under your gym tights.
Sound familiar?
We believe period underwear should be designed for more than sitting around waiting for your period to finish.
It should be designed for squats, sprints, burpees, box jumps and everything in between.
Because being on your period shouldn't mean changing the way you train.
Frequently Asked Questions
Can I really wear a thong on my period?
Absolutely! That's one of the things that makes Double Undies so different. Our unique winged gusset provides a much wider absorbent area than a traditional thong, with two layers of built-in absorbency. So if you love wearing a thong, there's no reason your period has to change that!
Are Double Undies designed for high-impact exercise?
Yes! Double Undies were born from a CrossFit workout, so movement has always been at the heart of what we do. Whether you're running, jumping, lifting weights or doing a HIIT workout, they're designed for active women who don't want their underwear getting in the way.
Can I wear Double Undies on heavier period days?
Double Undies are designed to manage moderate period flow, thanks to our unique winged gusset and two layers of absorbency. If you have a particularly heavy flow, you may need to change them more frequently or use additional period protection, depending on your individual needs.
What makes Double Undies different from other period underwear?
It's all about our unique winged gusset and the fact that Double Undies were designed for movement from day one! We wanted to create underwear that could handle the demands of exercise while still looking and feeling like underwear you'd actually want to wear. Our winged gusset provides extra absorbent coverage where you need it most, even in a thong!
Do the thong and brief have the same technology?
Yes! Both our thong and brief feature our unique winged gusset with two layers of absorbency, moisture-wicking fabric and a waterproof barrier. So whether you're a thong girl or prefer a little more coverage, you get the same innovative technology.
Can I wear them outside the gym?
Of course! Although Double Undies were originally created for exercise, they're just as suitable for everyday wear. Whether you're heading to work, going out with friends, running errands or simply relaxing at home, they're designed to keep you comfortable and confident.
How do I wash them?
Easy! Wash before your first wear, then machine wash at 30°C or below, let them air dry and avoid the tumble dryer, as heat could damage the bond, lifespan and performance.