Best Men’s Underpants for Running in 2025

Posted by Paul Souliac on April 10, 2025

Running isn’t just about shoes or GPS watches—your underpants can make or break your workout. Poorly designed pairs lead to chafing, sweat buildup, and distractions that tank your performance. In 2025, advancements in fabric technology and ergonomic design have revolutionized running underwear. Let’s break down what matters and how to choose the right pair for your needs.

Whether you're logging miles on the road or hitting rugged terrain, the right gear is essential. For endurance athletes, finding the best men’s underwear for long distance running can significantly reduce friction and discomfort.

Trail runners, on the other hand, benefit from options specifically engineered for rugged routes—check out the best men’s underwear for trail running and dive deeper into our expert guide on trail running underwear for men.

Need more insights? Discover how top picks perform over long distances in our detailed long-distance running underwear review.

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Why Running-Specific Underwear Matters

Running isn’t a gentle activity. The repetitive motion, sweat, and friction demand underwear that keeps up. Here’s what sets performance running underpants apart:

Moisture-wicking fabrics pull sweat away from your skin, reducing irritation.
Seamless designs prevent chafing in high-friction zones like the inner thighs.
Ergonomic pouches provide support without restrictive tightness.
Breathable materials regulate temperature during hot or cold runs.

Key Features to Look For in 2025

1. Fabric Technology

The best running underwear uses synthetic blends optimized for athletic performance:

Material	Benefits	Best For
Modal	Ultra-soft, breathable, resists odor	Long-distance runs
Nylon	Lightweight, durable, quick-drying	Speed workouts
Merino Wool	Natural temperature regulation, anti-odor	Cold-weather runs

Example: Modal’s moisture-wicking properties keep you dry during marathon training, while nylon’s durability holds up to daily wear.

2. Fit and Support

A 2025 survey of 1,200 runners revealed that 68% prioritized “no ride-up” as their top concern. Look for:

Flatlock seams to eliminate irritation.
6–7-inch inseams that stay put without squeezing thighs.
Adjustable waistbands that won’t dig in during sprints.

3. Weather-Specific Designs

Hot climates: Mesh panels and cooling tech (e.g., SAXX’s DropTemp) lower skin temperature by up to 5°F.
Cold weather: Merino wool or thermal liners retain heat without bulk.

Top Picks for 2025 (Based on Expert Testing)

While we avoid naming competitors, industry tests highlight trends driving this year’s top designs:

Best Overall: Ultra-breathable boxer briefs with 4-way stretch fabric and anti-odor treatment.
Best for Hot Weather: Lightweight nylon blends with laser-cut ventilation zones.
Best Budget: Affordable polyester-spandex pairs that outperform cotton.

Best Men’s Underpants for Running in 2025

RMAC - Best Men’s Underpants for Running in 2025

Modal 7in Boxer Briefs No Fly 6pk Black/Dark Gray/Navy

Description (Modal 7in Boxer Briefs No Fly 6pk Black/Dark Gray/Navy):

Features:

Tailored Pouch Sizes: Discover unmatched comfort and support with four customizable pouch sizes (A, B, C, D) designed just for you.
Moisture-Wicking Modal: Our expertly crafted modal fabric whisks away moisture effortlessly, keeping you cool and dry in any situation.
Sturdy Waistband: Enjoy the peace of mind that comes with a no-roll waistband, securing fit regardless of your movements.
Irritation-Free Design: Say goodbye to annoying tags with our tagless design that enhances your comfort.
Unrestricted Flexibility: With a blend of nylon and spandex, these briefs adapt to your every move, providing all-day comfort without chafing.

Description:

Gentlemen, elevate your underwear experience with our Real Men Boxer Briefs—crafted to embrace your assets with divine comfort. Choose from four tailored pouch sizes (A, B, C, D) that offer a bespoke fit and redefine traditional underwear standards. Why settle for the ordinary when you can pamper your crown jewels with the luxury they truly deserve? Upgrade to a life of freedom and comfort—it's time to let your confidence soar!

Product Care:

Composition: 92% Modal, 8% Spandex
Machine wash cold
Gentle cycle
Avoid bleach
Tumble dry on low

Discover Also:

-Nylon Seamless 7in Boxer Briefs No Fly 3pk Black/Heather Gray/Slate Green

-Nylon 9in Boxer Briefs V-FLY 3pk Black

-Modal 7in Boxer Briefs No Fly 3pk Black/Blue/Gray

-Modal 7in Boxer Briefs V-FLY 3pk Black/Cyan/Gray

-Modal 3in Boxer Briefs No Fly 3pk Heather Gray/Slate Gray/White

-Click here to see more Boxer Briefs

Nylon 0in Sport Briefs No Fly 4pk Blue/Gray/Dark Blue/Dark Gray

Description (Nylon 0in Sport Briefs No Fly 4pk Blue/Gray/Dark Blue/Dark Gray):

Features:

Custom Fit: Experience a personalized fit with our sport briefs, available in four pouch sizes (A, B, C, D) to perfectly suit your body’s contours.
Moisture-Wicking: Designed with moisture-wicking fabric, these briefs ensure you stay cool, dry, and fresh throughout the day.
No-Roll Waistband: Enjoy the convenience of a medium-rise waistband that remains securely in place, preventing any rolling or bunching for optimal comfort.
Flexible Support: Crafted from stretchy materials, these briefs provide the ideal combination of support and flexibility to move with you during any activity.

Description:

Ladies and gents, get ready to rev up your comfort with Real Men Sport Briefs, engineered to elevate your daily wear to a whole new level. Offering four pouch sizes (A, B, C, D), these briefs are tailored like a trusted pit crew, ensuring your prized possession is both supported and comfortable. Slip into unmatched comfort and performance—winning the Daytona 500 of comfort with each wear. Say goodbye to mundane underwear and hello to a whole new kind of champion-level comfort.

Product Details

Material: Composed of 90% nylon and 10% spandex for ultimate comfort and durability.
Care Instructions: Machine wash cold, use a gentle cycle, avoid bleach, and tumble dry on low for long-lasting wear.

Discover Also:

-Modal 0in Briefs No Fly 3pk Blue/Gunmetal Gray/Heather Gray

-Modal 0in Briefs No Fly 3pk Pink/Purple/Turquoise

-Click here to see more Briefs

Nylon 0in Low-Rise Bikini Briefs No Fly 3pk Black/Gray/White

Description (Nylon 0in Low-Rise Bikini Briefs No Fly 3pk Black/Gray/White):

Key Features:

Tailored Fit: Choose from four customized pouch sizes (A, B, C, D), ensuring personalized support and comfort tailored to your needs.
Breathable Fabric: Crafted from lightweight nylon fabric, these briefs efficiently wick away moisture, keeping you cool and dry all day long.
Secure Waistband: Featuring a no-roll, low-rise waistband, these briefs promise a secure fit that won't roll or dig into your skin.
Tag-Free Comfort: Say goodbye to irritation with our tagless design, enhancing your comfort experience.
Flexible Movement: The combination of ice silk nylon and spandex allows freedom of movement, preventing chafing or riding up, so you can move effortlessly.

Product Care Instructions:

Material Composition: 90% Nylon, 10% Spandex

Machine wash in cold water
Use a gentle cycle
Avoid bleach
Lay flat to dry

Discover Also:

-Modal 0in Bikini Briefs No Fly 3pk Black/Blue/Gray

-Modal 0in Low-Rise Bikini Briefs No Fly 3pk Emerald/Purple/Red

-Modal 0in Bikini Briefs No Fly 1pk Black

-Nylon 0in Mesh Bikini Briefs No Fly 3pk Black/Blue/Gray

-Click here to see more Bikini Briefs

Nylon 0in Strapless Jocks No Fly 3pk Red/Green/Purple

Description (Nylon 0in Strapless Jocks No Fly 3pk Red/Green/Purple):

Features:

Strapless Innovation: Enjoy unparalleled freedom and ease of movement with a strapless design that provides essential support without the cumbersome bulk of traditional jockstraps.
Breathable Performance Fabric: Crafted from a lightweight, moisture-wicking nylon-spandex blend, this fabric keeps you cool and dry throughout any activity.
Secure No-Roll Waistband: Experience all-day comfort with a waistband that stays securely in place, eliminating the need for constant adjustments.
Flexible Comfort: The stretchy fabric moves seamlessly with you, offering flexibility while preventing chafing or irritation for ultimate comfort.

Description:

Get ready for a game-changer, gentlemen! Introducing the Real Men Strapless Jocks - redefining comfort and support without the hassle of straps. Slip into these jocks to experience the blissful feeling of having your assets comfortably supported, liberating you from the confines of traditional jocks. Say goodbye to outdated styles and hello to freedom!

Product Details