What Is Modal Underwear and Why Does It Matter?


At TomboyX, it’s no secret that we love modal underwear. And there’s a long list of reasons why that is. These natural fabric-based undergarments are ultra soft and durable, all while being good for the environment!

But we’re getting ahead of ourselves here. Read on to get the nitty-gritty on why modal underwear is a big deal!

Sustainability In Modal Fashion

Sustainability in fashion is more than just a trend –– it’s a vital part of making sure we’re doing our part to protect the planet. One of our favorite things about modal fabric is its eco-friendly properties and processes.

Here’s a rundown on how modal contributes to sustainability in fashion:

Environmentally Responsible Life Cycle

TENCEL™ modal underwear is made from renewably sourced beechwood trees. Not only is the process of growing and harvesting these trees self-sufficient in energy, but it also creates a product that is compostable and biodegradable.

Because natural fibers like TENCEL™ Modal and Lyocell are made from cellulose from wood pulp, they can be broken down in nature. That means you aren’t releasing harmful microplastics into the waterways when you wash your clothes. 


The durability of TENCEL™ Modal is another way that it results in an eco-friendly product. These days, we are often faced with so-called fast fashion standards; this refers to flimsy, poorly made products that are quickly and easily worn out. They are quickly bought and quickly thrown away.

Fast fashion has a poor environmental impact; it wastes water and energy and results in huge greenhouse gas emissions — people in the US throw out an average of 82 pounds of textile waste a year.  

To reduce this waste, clothes must be made to last. That’s where this ingenious fabric comes in. TENCEL™ Modal fibers are made with durability and longevity in mind. They maintain their integrity even after repeated washing and drying. 

Carbon Reduction and Neutrality

TENCEL™ Modal fabric is made by an Austrian group called Lenzing. Since 2020, Lenzing has been working towards the goal of carbon neutrality and has already launched carbon-neutral TENCEL™ Modal fibers. Their ultimate goal is to achieve net-zero CO2 emissions by 2050.

Carbon neutrality involves striking a balance between the amount of carbon we emit and the amount of carbon that is absorbed, or removed, from the atmosphere. One way carbon can be absorbed is through carbon sinks, such as forests. Another path to carbon neutrality is by investing in renewable and energy-efficient technologies and resources to offset the carbon emitted by manufacturing.

Why is this important? Fashion production comprises around 10% of total global carbon emissions. Reducing carbon emissions is one of the major ways to combat global warming, which is why TomboyX is committed to a more sustainable approach.

Features of Modal Underwear That We Love

Now that you have learned a bit about the environmentally friendly aspects of modal, it’s time to go over the other qualities we’re excited about. Namely: what is it about modal underwear that feels so good?

Let’s break it down:

Super Soft

Look, we all love cotton –– soft, smooth, and a total underwear classic. But have you heard that many consider TENCEL™ Modal to be twice as soft as cotton? That’s right; the number one thing most people look for in underwear is, after all, comfort. This fabric delivers all the comfort you want and more.

Temperature Regulating

One of the most important qualities of underwear is breathability. That’s why breathable materials, such as cotton, are so popular when it comes to undergarments.

Modal fabric, being made from natural fibers, is also incredibly breathable. You won’t have to worry about getting all hot and sweaty down there while at the gym or just going about your day.

Just the Right Amount of Stretch

One of the attractive qualities of TENCEL™ Modal is that it can easily be blended with other fabric fibers for different desired effects.

When it comes to underwear, everybody wants a bit of flexibility to avoid uncomfortable pinching or wedgies. 5% Spandex is added to our modal underwear for that perfect bit of stretch — no wedgies present. 

Styles To Choose From

Here at TomboyX, we love our modal underwear. You can browse through our many selections and find something that perfectly suits you!

Here are all the different ways modal fabric lends itself to versatility in underwear:

Different Sizes

People of every shape, size, and walk of life deserve to feel amazing in the perfectly fitting pair of comfy underwear. We make sure that we have clothes to accommodate a wide range of sizes.

Our TENCEL™ Modal underwear collection has been fit-tested on all body types from sizes XS through 4X. Gone are the days when you have to settle for poorly fitting undergarments. 

Different Styles of Underwear

There are tons of different types of underwear to choose from. The biggest difference comes down to coverage and freedom of motion.

A quick rundown:

The most minimal coverage option is, of course, the beloved thong. For more medium, classic coverage with a bit of cheekiness, you may want to check out bikini bottoms instead. 

Boy shorts are a sporty, semi-modest choice that still leave plenty of room for the thighs. From then on, we’ve got trunks, boxers, and boxer briefs for the highest coverage options. These range from 4.5-inch to 9-inch inseams.

Exciting Colors and Prints

Who says you can’t express yourself through your underwear? Sure, you always want to put comfort first, but the great thing about our modal underwear is that you can have a little fun at the same time.

While you may want to stick to ever-reliable nudes and solid colors, you can also choose from a host of fun and funky patterns and prints. From butterfly thongs to beige bikini bottoms, there’s really something for everyone.

Of course, you can always strike a balance. Black underwear with a rainbow waistband is a great way to mix practicality with a hint of self-expression.

Final Takeaway

Let’s face it: We all want to feel good in our underwear. Making that happen comes down to a couple of key factors. First of all, they need to feel comfortable.

With soft, breathable, and slightly stretchy modal material, there’s nothing there to worry about. Secondly, you want your underwear to look good. Fortunately, there is no shortage of styles here at TomboyX to choose from to provide a look that is fun and flattering.

Lastly, a lot of us are concerned about our environmental impact. The fashion industry as a whole has to step up to make sure sustainability becomes the new standard.

Being biodegradable and made through sustainable practices, TENCEL™ Modal is a good step forward. By now, we hope you agree that modal underwear has lots to love. If you’re still not fully convinced –– try on a pair and see for yourself! 


What is Modal fiber? | Modal fiber properties | TENCEL™ Modal fibers

Lenzing celebrates one year launch of carbon-zero TENCEL™ branded fibers with expansion to REFIBRA™ technology | Textile Exchange

What is carbon neutrality and how can it be achieved by 2050? | News | European Parliament

Fast Fashion and Its Environmental Impact | Earth.Org

Six fashion materials that could help save the planet | BBC Earth