The Science Behind How Period Swimwear Works

Period swimwear is the latest innovation for swimming on your period and has revolutionised the way women and people with periods manage their menstrual cycles. No longer do you have to spend time sitting on the side lines or missing out on summer fun with family and friends because your period has unexpectedly arrived. Period swimwear has become a must-have for those who love swimming, staying active and comfortable, and supporting sustainability to reduce their contribution to landfill waste.

Even so, you might be wondering how period swimwear actually works. That’s why we’re breaking down the layers behind our gamechanger period swimwear so you have the confidence knowing our technology is science backed and lab-tested–plus why it's an excellent choice for both your comfort and the environment.

How period swimwear works - InnovSwim® Technology

How our period swimwear works starts with our independently lab-tested, InnovSwim technology. The multi-layer approach of our design features three uniquely designed layers and water-repellent outer fabric, when combined with a snug fit (no loose areas!) work to prevent leaks in and out of the water.

Absorbent Layer: A thin and discreet layer, lab-tested to absorb up to 6ml of menstrual blood and discharge. It can absorb up to 10 times its weight in under 2 seconds.

Waterproof Layer: The waterproof layer supports the absorbent layer to lock away any absorbed blood and discharged, and prevent water from getting inside your swimsuit.

Moisture Wicking Layer: The moisture-wicking layer is closest to your body and is designed to quickly wick away moisture from your body. This ensures that you stay comfortable and dry in the gusset area, while in and out of the water.

Water Repellent Fabric: The outside fabric of our period swimwear is water repellent so it won’t soak up excess water–droplets simply roll off. This helps keep you feeling dry and avoids the water you’re swimming in to be absorbed by your swimsuit or adding extra bulk.

The "Dry-Feel" Phenomenon

One of the most game-changer aspects of period swimwear is the "dry-feel" phenomenon thanks to the moisture-wicking layer. Despite absorbing menstrual blood and discharge, wearers often report feeling dry and comfortable. The combination of the moisture-wicking, absorbent, and water-proof and leak-proof layers work in harmony to lock away period leaks and keep you feeling confident, secure, dry and worry-free.

Eco-Friendly Fabrics

In addition to the functionality, the sustainability aspect of period swimwear is equally crucial. As a sustainable period swimwear brand, we’re committed to making a positive impact on the environment and continually improving on our initiatives.

Eco-Friendly Fabrics: Our period swimwear is made from eco-friendly materials like recycled nylon, ensuring that fewer resources are consumed in the manufacturing process.

Reusable Options: Our period swimwear is designed with quality in mind to last for many years of swimming in the beach and pool if taken care of well. Simply wash and wear time and time again, reducing the need for single-use period protection while swimming (like tampons) and decrease waste in landfills.


As a sustainable period swimwear brand, we are committed to offering you the best of both worlds – an eco-friendly solution that keeps you comfortable and confident. By choosing period swimwear, you're making a conscious choice that not only benefits you but also contributes to a more sustainable future.

Make conscious swaps with confidence and style by exploring our Azure Belle Period Swimwear collection, thoughtfully designed in Australia for ladies and teens.


If you’re ready to take the plunge and start enjoying the water even on your period days, Azure Belle has a range of discreet period swimwear that’s perfect for hitting the beach, stretching with some laps or just chilling by the pool.

With our range of women’s period swimwear in one-piece and two-piece styles and teen period swimwear designed for anyone trying out period underwear for the first time, you’re sure to find the perfect fit. Shop our period swimwear online today, and never miss out on swimming even when it’s that time of the month again.

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