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The Ultimate Guide To Choosing The Right Underwear When Running

by Sportitude

When it comes to getting ready for a run, every piece of gear counts, especially the often-overlooked underwear. It’s not just about comfort; it’s about optimising every stride. From chafing nightmares to the confidence of the right fit, here are the nuances of running underwear and how the right choice can elevate your performance.

The importance of the right underwear in running

The role of comfort in enhancing performance

When you lace up in your running shoes and head out for a run, every piece of gear you wear matters, from your compression tights, right down to your underwear. Just as you're meticulous about your shoes, running socks, tops and bottoms, it's essential to learn the importance of selecting underwear when running. It’s not just about feeling good; it’s about optimising every stride.

Why underwear is important when running (or brief-lined running shorts)

Most top running brands, such as the creators of Saucony shoes, Brooks shoes or Asics shoes, have variety in their products - from running shoes to cater to every runner, to running shorts. Many manufacturers of running gear offer training shorts with built-in liners.

These liners, whether brief or boxer brief, are designed to provide the support and coverage you need in one. Just like specialised running underwear, they're made with moisture-wicking fabric or mesh to ensure breathability and ventilation.

Plus, there’s the added convenience of one less item to wash. It's not necessary to wear underwear under a built-in liner short - it's really up to your personal preference. Take a sneak peek at Nike's brief-lined running shorts range below.

How the right gear helps you have a better run

There’s a certain confidence that comes from feeling prepared. The right gear, from running shoes to running clothing, minimises distractions and discomfort. When you're pounding the pavement or tackling a trail, you want to focus solely on your run. The best clothes, including the right underwear when running, allow you to do just that. It’s not just about the physical benefits; it’s about the mental edge it gives you.


The advantages of quality running underwear

Chafing and rashes: A runner’s worst nightmare

Chafing is a runner’s bane. With every stride, there’s potential for skin irritation due to the repetitive motion. But with the right running underwear, you get that crucial layer of protection. It’s not just about avoiding discomfort; it’s about ensuring your skin is shielded from the harsh effects of salty perspiration. 

Just as you’d pick specialised gear for your feet or torso, your underwear shouldn’t be any different. The design features in performance underwear, like tagless and seamless stitching, ensure that fabric-on-skin friction is prevented. This is a game-changer, especially for those long runs like your next half marathon where every detail counts.

Moisture management: Stay dry, stay fresh

We’ve all been there – finishing a run drenched in sweat, especially if you’re wearing cotton. But running-specific underwear changes the game. Made with moisture-wicking materials, they ensure you remain cool and dry, even during the most intense workouts.

Common materials like polyester are designed for a glove-like fit. They not only keep you dry but also ensure that the underwear adapts to your body’s movements, reducing the risk of irritation.

Ultimate comfort: No more adjustments

There’s nothing more distracting than underwear that bunches up or rides high during a run. The right running underwear ensures a smooth appearance under clothing and, more importantly, a comfortable experience. No more mid-run adjustments or discomfort. Just pure focus on the path ahead.

💡KEY TAKEAWAY: A great pair of running underwear saves you from chafing, excess moisture and discomfort, so you can focus on your run.


What to consider when shopping for running underwear

The importance of fit

When it comes to running underwear, fit is paramount. A tighter fit is generally more beneficial, as looser fabric can lead to bunching and unwanted movement.

Just as you’d ensure your running shoes fit snugly to prevent blisters, your underwear should have a close fit to prevent chafing and discomfort. It’s not just about aesthetics; it’s about ensuring every part of your gear works harmoniously with your body’s movements.

Style matters

While style might seem secondary to function, it plays a role in how confident and comfortable you feel during your run. Whatever your preference, the key is to choose a style that complements your running attire and personal comfort preferences.

Material: The fabric of performance

The material of your running underwear can make or break your run. Materials that offer stretch, breathability and moisture-wicking properties are essential. This ensures that your clothing moves with you, not against you.

Fabrics like polyester, nylon and spandex blends are your best mates on the track. They’re lightweight, breathable and designed to wick away sweat, ensuring you and your sensitive areas remain fresh and comfortable.

💡KEY TAKEAWAY: Choosing the right running underwear is a blend of fit, style and material. This way, you can ensure that your underwear enhances your run rather than detracts from it.


Making the right choice

Briefs vs boxers: The male runner’s dilemma

For male runners, the choice between briefs and boxers can be a game-changer. While boxers offer more freedom, they might lack the necessary support during intense runs. On the other hand, briefs provide that snug fit and support, but without the right material, they can be a chafing nightmare.

The trick? No matter which one of these you prefer, opt for a tighter fit and materials that are gentle on the skin, ensuring both comfort and performance.

Thongs: An option for women

For women who wear tight-fitting shorts or compression tights on their runs, running thongs can keep things discreet without sacrificing comfort. But, as with any running gear, material matters. The wrong choice can lead to discomfort or even chafing.

The power of compression shorts

For those embarking on long-distance runs, pairing your underwear with the right compression shorts or bottoms can be transformative. Not only do they reduce muscle soreness and fatigue, but they also enhance your overall performance.

💡KEY TAKEAWAY: When choosing the type of underwear you want for runs, make specific considerations in material, and pair them with the right compression shorts or compression tights.


Elevating your running journey

Caring for your running gear

Regular washing of your running underwear and running clothing is, of course, a must. Not only does it keep your gear fresh, but it also helps avoid infections. There’s nothing like slipping into a clean set of running clothes, knowing they’re free from yesterday’s sweat.

Dressing for every season

Running is a year-round sport, and your wardrobe should reflect that. Whether it’s the scorching heat of summer or the chilly winds of autumn or winter, having the right clothes including underwear for every season ensures you’re always prepared.

The power of community

There’s a wealth of knowledge out there, and often it’s from fellow runners. Joining a running community can be a game-changer. From tips on optimising your run to advice on the best gear, being part of a group like parkrun provides a platform for shared experiences and insights. Plus, there’s nothing like the camaraderie of fellow running enthusiasts cheering you on.

💡KEY TAKEAWAY: From taking care of your gear to connecting with like-minded individuals, every step you take off the track matters just as much as the ones on it.


With Sportitude, you can embrace the power of attitude. Our goal is to fuel your steps and your spirit by providing premium running gear and expert insights.