How to Choose Men’s Underwear: Breathable Fabrics, Fit and Everyday Comfort

We spend more time choosing the right pair of jeans, shirt, and trainers than thinking about what goes underneath.

Truth is: underwear rarely gets the spotlight. But that’s too bad because when you’re sitting at your desk all day, traveling, working out in the gym, or rushing from one place to another, the wrong pair will make itself very noticeable. We’ve all been there at least once, when our day got 10x worse because our underwear choice was poor. A waistband that digs into the skin, fabric that feels clammy during a hot summer day, or legs that keep riding up. The perfect recipe for turning a perfectly ordinary day into an unnecessarily uncomfortable one.

Choosing men’s underwear is really about finding the right balance between fit, fabric, construction, and price. Only because one pair is made of the softest material doesn’t mean it’s automatically the ideal choice for you. And sometimes the most expensive pair available isn’t necessarily more comfortable than an affordable alternative.

When shopping for underwear, the way it fits your body, feels on your skin, and works with your clothes matters most. We want to help you make an informed decision, so we put together a couple of recommendations.

Start With The Way You Want Your Underwear To Fit

Let’s not get to comparing fabric labels just yet. Let’s consider the cut first. It’s more important than you think because men’s underwear comes in several styles, including boxer briefs, briefs, and trunks, and all of them offer different support, coverage, and freedom of movement.

Loose boxers offer more airflow and room, but you won’t like wearing them beneath slim trousers. Also, they provide less support than closer-fitting styles. If you wear tailored pants, athletic clothing, or fitted jeans regularly, you might prefer another type of underwear.

Briefs will leave your thighs uncovered and are a more compact solution that works well with shorts and slim trousers. If you prefer minimal fabric around your legs or dislike the feeling of fabric bunching beneath your clothing, they are great.

Trunks have a square-cut silhouette with shorter legs and offer a practical middle ground: some thigh coverage without the longer inseam of boxer briefs. Boxer briefs extend further down your thighs and may reduce friction when you’re playing sports or doing other activities.

Your comfort depends on several factors: fit, fabric, cut, and length.

There’s No Such Thing As The Perfect Fiber, So Compare Fabrics To Find Your Ideal One

Fabric composition plays a significant role in how your underwear feels against your skin. It impacts the boxer’s stretch, softness, moisture management, drying time, and how well it retains its shape in the long run. However, choosing the right material isn’t as simple as declaring synthetic, cotton, or bamboo-derived viscose the ideal option for you.

  • Polyester and polyamide are synthetic fibers commonly used in underwear designed for physical activities. Depending on the fabric, finish, and structure you choose, they can offer useful durability, stretch, and moisture management properties.
  • Cotton is a familiar and widely available solution for daily wear. Depending on its weight and construction, it can feel soft and provide a substantial, natural-fiber feel. However, it’s essential to note that it can absorb moisture and takes longer to dry than other fabrics.
  • Regenerated cellulosic fibers like bamboo-derived materials feel smooth and soft and work well for daily use. For example, Humolux bamboo boxer briefs offer a flexible fit due to their fabric composition: 60% bamboo, 35% cotton, and 5% spandex, which enhances comfort, softness, and flexibility, making them ideal for your daily underwear needs.

Check The Waistband, Seams, And Leg Openings

Yes, the fabric is important and should get a lot of attention, but the construction is also vital for your everyday comfort. Two pairs of underwear made from similar materials will feel completely different because of their overall cut, seams, and waistband.

So, let’s start with the waistband; it’s the one detail that keeps the pair in place, but without digging into your skin or rolling over when you sit down. If you notice pressure marks and discomfort around your waist, it’s time to get new boxers with a wider waistband.

Next, let’s check the seams because if they’re bulky or poorly positioned, they can cause skin irritation, especially if you sit for long periods of time, walk, or exercise. We prefer flat seams and smoother finishes because they prevent friction.

And lastly, the leg openings deserve your attention because if they’re too loose, the fabric can bunch or shift. On the other hand, if they’re too tight, you might feel restricted in movement.

We recommend trying a pair before ordering several products. Sit down, move around, bend, and make sure the construction feels comfortable.

Don’t Guess Your Size; Make Sure It’s Right

Buying your usual size is a good starting point, but sizing sometimes differs from one brand to another, or even between different styles from the same brand. So, we find it important to check the individual size chart instead of assuming that your size from one manufacturer will fit exactly when switching to another. Take the time to measure your waist according to the brand’s instructions and compare it with the published chart. If you’re between sizes, check what the manufacturer recommends, as they often tell you whether you should size up or down according to your body needs.

Here’s A Short Checklist That Might Help You In The Process
Essentials to run through before adding a product to your cart

  • Fabric: Have you checked the fiber composition and considered how it feels against your skin?
  • Fit: Does the size chart match your measurements, and is the cut suitable for your body?
  • Construction: Is the waistband comfortable, and do the seams and leg openings feel right?
  • Daily use: Will the style work beneath your usual clothing and during your typical activities?

The Bottom Line
The best pair of men’s underwear for you isn’t necessarily the softest on a product page, the most expensive, or made from the trendiest fiber of the moment. It’s actually the pair that fits you comfortably, suits your daily routine, and remains practical to care for.

Hannah Longman
Hannah Longman
From fashion school in NYC to the front row, Hannah works to promote fashion and lifestyle as the communications liaison of Fashion Week Online®, responsible for timely communication of press releases and must-see photo sets.

Follow Fashion Week Online® on Instagram for exclusive content

You may also enjoy ...

Where Couture Meets Culture: Inside the VUGA TV Awards 2026 in Paris

Paris has never needed an excuse to bring fashion, art and beauty into the same room. On September 30, 2026, the city became the...

The Art of Becoming: Fashion Week Studio Closes Its Paris S/S27 Showcase Series

Fashion Week Studio concluded its three-part Paris S/S27 showcase series at Pavillon Dauphine with an expansive international presentation spanning couture, bridalwear, contemporary fashion, Japanese...

Fashion Week Studio Presents an International Mix of Couture, Bridal and Contemporary Design in Paris

Fashion Week Studio continued its international S/S27 journey at Pavillon Dauphine with the second of its three Paris presentations. Bringing together designers working across...