Your Complete Guide to Period Underwear

Most of us have gone searching for an affordable and reusable alternative to single-use tampons and pads at some point, right? Yet, there’s often a lot of questions that come up about these alternatives. So, if you’ve been wondering how period underwear works and whether this is the right choice for you, let’s dive in and find out!  

In this guide, we explore what period undies are, how they work, and why they might just become your new period bestie.  

What is period underwear?  

Period underwear, or period undies, are specially designed to offer a comfortable and reusable alternative to tampons and single-use menstrual pads. They look and feel very similar to standard underwear and are made with multiple layers of absorbent and moisture-wicking fabrics, to keep you dry, comfortable, and leak-free all cycle long.   

How does period underwear work? 

The multi-layer fabric system that provides the leak protection and comfort is made up of:  

1. Absorbent layer: This layer pulls moisture away from your skin, keeping you dry 
2. Absorption layer: This layer locks in liquid, holding the equivalent of multiple tampons, without feeling bulky (period undies are quite similar to standard underwear) 
3. Waterproof layer: The final layer prevents leaks, so you can go about your day with confidence.

How to use period underwear  

Choosing and using period underwear is super easy. Here’s how in three simple steps: 

1. Choose the right absorbency: Pick the right level for your menstrual flow. Period undies are specifically made for different flows, e.g. light, medium, or heavy. As a guide, Triumph’s Medium Absorbency Period Pants hold the equivalent of three regular tampons.  
2. Wear them like regular underwear: period undies are worn just like any other pair of underwear 
3. Change as needed: Depending on your flow, you may need to change your period underwear anywhere between 6-12 hours. Always follow the care instructions for washing and drying to keep them clean and in good shape.

What does period underwear look and feel like? 

Period underwear comes in many styles and designs, just like your regular undies. From high leg briefs, to full coverage options like the Maxi Freedom Briefs, there’s something for everyone. They look and feel like normal underwear, with the added bonus of built-in leak proof period protection. 

How do you wash period underwear? 

Cleaning period pants is easier than you might think. Follow these steps to keep them fresh and in good condition.  

1. Rinse after use: If you have a heavier menstrual flow, rinse your period undies in cool water right after wearing them. This helps remove excess blood and makes the washing process more effective 
2. Gentle machine wash: Period underwear can usually be washed in the washing machine. Use cool or warm water, and a gentle cycle. Avoid hot water as this can set stains and damage the fabric. Always check the label for specific instructions first.  
3. Use gentle detergent: Opt for a gentle detergent to avoid compromising the fabric’s integrity. Harsh chemicals, bleach, and fabric softeners can break down the materials and reduce absorbency.  
4. Avoid the dryer: Air-dry your period pants to preserve their elasticity and absorbency. Excessive heat from a clothes dryer can damage the fabric and reduce their effectiveness.  

Common concerns and questions about period undies 

You might still have some concerns about making the switch to period pants. So, let’s address some of the most common questions. 

Do period undies smell? 

No worries here - period pants are treated with safe antimicrobial agents, to prevent odours and keep you feeling fresh all day. By following the care instructions you will also prevent any unexpected odours from developing. 

Won’t they leak? 

With their multiple layers, including a waterproof layer, you’re covered even on heavy flow days. Add a range of different period underwear to your drawer so you know you’re covered for even the heaviest flow days! 

Do they feel bulky? 

Made with breathable, stretchy and comfortable materials like organic cotton and bamboo, period undies combine everyday comfort with advanced absorbent technology - so you’re comfortable. They can feel slightly thicker than regular underwear, but they are not bulky. 

Do you have to wear a pad with period underwear? 

No. The great thing about period pants is you can wear them on their own! No need for pads or tampons either. However, some people prefer to use these as a backup on their heaviest flow days. 

Can you sleep in period underwear? 

Absolutely! They are perfect for overnight protection. For heavy flow nights, go for full coverage pairs like the Maxi Freedom Briefs, which are comparable to five tampons! 

Can you wear period pants all day? 

Yes, you can! Depending on your menstrual flow, period underwear can be worn all day. Always check the specifics of the undies you plan to buy, as some will specify their recommended hours of wear. 

How long will period undies last? 

With proper care, they can last you for about a year. Yep, that’s right! Unlike regular underwear that we often need to replace every few months for hygiene reasons, period underwear gets a bit more TLC in terms of care. 

But remember, if you notice changes in the fit of your period undies, or if the elasticity starts to break down, it might be time to shop for some new ones to make sure that you always have the comfort and protection you need! 

Learn more about how to know when to replace your period underwear

Can you wear period undies while swimming? 

Making the right choice for water activities depends on the brand and type of period underwear, as well as the level of menstrual flow you’re experiencing.  

While period undies are designed to be absorbent and water-resistant, not all are made to be submerged in water. When wet, some period underwear might become heavy and less effective at preventing leaks, so we would not recommend wearing them in the water. 

Period underwear offers a revolutionary way to manage your menstrual cycle with ease and comfort. By understanding how they work and choosing the right style and absorbency for your needs, you can enjoy leak-free, odour-free, and hassle-free periods. Discover Triumph’s range of period undies and make the switch to a more sustainable and comfortable menstrual solution today. 

Triumph has been a trusted name in women's underwear and lingerie in Australia for over 50 years, focusing on comfort, fabric, and fit. Our period underwear range caters to all needs, from light to heavy flow. Whether it’s our Sloggi Period Pants or the Maxi Freedom Briefs, Triumph has you covered. 

Explore Triumph’s range of period underwear 

The Sloggi Period Pants Light and Medium coverage options provide discreet, comfortable, and eco-friendly protection. The light version is ideal for lighter flow days, offering absorbency equivalent to one regular tampon, while the Medium version is designed for moderate flow, holding up to three regular tampons' worth of liquid. Both styles feature a leakproof layer, antimicrobial treatment to prevent odours, and are reusable, making them a zero-waste alternative to traditional menstrual products. 
 
The Triumph Maxi Freedom Briefs offer high absorbency and ultimate comfort for heavy flow days, with organic cotton and bamboo gusset providing skin-friendly, antibacterial, and leak-proof protection. These reusable briefs absorb up to 25ml, equivalent to 5 tampons, ensuring full coverage for heavy flow days and nights. 
 
The stylish Tai Freedom Briefs provide comfortable and eco-friendly protection for moderate flow days with their organic cotton and bamboo gusset. These reusable briefs absorb up to 15ml, equivalent to 3 tampons, and feature antibacterial and leakproof layers for ultimate convenience and dryness. 

To find your perfect fit, check out our sizing guide. Experience the comfort and reliability of Triumph period underwear—a comfortable and reusable alternative to traditional menstrual products.