Skip to Content

We earn a commission for products purchased through some links in this article.

The best running underwear for men to eliminate chafe and discomfort

We've tested the best boxers and briefs for runners

By
VerifiedTested by Joe Mackie
a pair of briefs and a pair of boxer shorts

Want more tried and tested recommendations from the RW editors? Sign up to our weekly newsletter Kit Bag. Click here to subscribe.


Even if your kit bag is crammed full of innovative gear and your feet are constantly cradled by the latest running shoes, there’s still one key piece of kit you may be overlooking as you prepare for race day – your underwear.

A good pair of running underwear can make the difference between setting off on a comfortable run and enduring unpleasant chafing as you rack up the miles. Fortunately for you, our panel of avid runners has tested a number of the best underwear for running, to find out which ones can handle the heat and which ones crumple under the pressure.

So, do yourself a favour and invest in one of our tried and tested pairs of pants to enjoy wedgie- and chafing-free running.

Best men’s underwear for running

Shop the best women's running underwear here.

    What to consider

    There are several key differences between your everyday underwear and boxers made specifically for sport. These are the main things to look out for:

    Material

    Cotton is the most common material used to make underwear. However, if you’re after a pair to wear for more hardcore exercise, you’ll likely want something a bit lighter and more flexible, with heightened sweat-wicking properties. Among the products we tested, brands opted to make the most of nylon, polyester and even merino wool to keep wearers comfortable.

    Fit

    Running underwear comes in a variety of fits. Men typically choose between briefs or boxer-briefs (full-on boxers tend to be too billowy for most runners). Which is right for you is largely a matter of personal preference.

    You’ll also want a pair of underwear that can keep you supported as you pound the pavements or trails, without being so tight that they feel restrictive or don’t move with the body.

    Seams

    Few conditions plague runners as frequently as chafing, so the best running underwear boasts seamless, tagless designs to reduce the potential for skin-irritation. Some underwear, like lululemon’s Built to Move Boxer takes this a step further by offering four-way movement, which allows the material to stretch in any direction, further reducing rubbing.

    Sweat-wicking properties

    As mentioned under the material section, you don’t want your underwear to be sodden at the end of each jog. Not only will this prove heavy and uncomfortable, it could also lead to rubbing. Some materials are able to wick sweat away from the skin as it forms, keeping wearers cool throughout. This is one of the key criteria we considered when testing underwear for exercise.

    How we selected

    We sent out 21 different pairs of underwear to our panel of trusted runners, with each person asked to review up to three products. They wore each pair for at least three different types of runs. We also put each pair of underwear through the wash three times to make sure they retained their fit and shape.

    Design, comfort, performance and quality were all considered as each tester delivered detailed feedback on the products they had worn. This data was then broken down to calculate a final score for each pair, and crown our champions.

    Our reviews

    1
    Best boxers

    Saxx Mens Kinetic HD Boxer Briefs

    Saxx Mens Kinetic HD Boxer Briefs

    These briefs won our coveted Gear of the Year award in 2024 – and for good reason. Designed for extra support on the move, there’s a light compression in the fabric and a ‘Pro’ version of Saxx’s signature ‘BallPark Pouch’, which increases snugness and security where it counts. The four-way stretch fabric never feels constrictive, and it’s ideal for longer runs, offering breathability, as well as moisture-wicking and anti-odour properties.

    Materials88% Nylon, 12% Spandex
    Sizes availableS-XL
    Priced asOne unit
    2
    Best fit

    Runderwear Men's Boxer Shorts

    Runderwear Men's Boxer Shorts

    Pros

    • Superior support prevents bouncing
    • Outstanding moisture-wicking helps with comfort and odour
    • Seamless and anti-chafing

    Cons

    • Inconsistent availability

    Runderwear is known for its supportive underoos, and with its gusseted crotch, the company’s Running Boxer delivers paramount support while providing plenty of stretch for mobility. The material is also smooth to the touch, breathable, and great at wicking moisture.

    Its seamless design eliminates chafing, and while the fit is deemed ‘boxer’ there isn’t any of the bagginess you’d typically find in such a cut. Beyond running, we really like these for hiking or long days of walking as they feel comfy through movement of any kind. Really, the only issue is the inconsistent availability, so be sure to buy a few pairs whenever they’re in stock.

    Materials92% recycled polyamide, 8% recycled elastane
    Size rangeS-XXL
    Washing instructionsMachine wash and dry
    Advertisement - Continue Reading Below
    3
    Best for odour control

    Lululemon Built to Move Boxer 5"

    Lululemon Built to Move Boxer 5"

    Pros

    • Excellent moisture wicking helps prevent odor
    • Comfortable and stretchy for any activity

    Cons

    • Pricey for a single pair

    Fighting odour is often a matter of reducing moisture, and to that end lululemon’s Built to Move Boxers go above and beyond. Our testers found them to be unrivalled at wicking and drying sweat, and offer better-than-average breathability. And having tested them over many workouts and washes, they don’t build up odour over time like many other options have a tendency to.

    Four-way stretch allows for unimpeded motion, and they are nicely supportive where it’s needed most. Like all lululemon products they certainly don’t come cheap, but the durability is excellent, so you can count on them to last.

    Features at a Glance

    Materials76% Nylon, 24% Lycra® Elastane
    Size rangeXS-XXL
    Washing instructionsMachine wash cold
    4
    Best for temperature control

    Smartwool Merino Print Boxer Brief

    Smartwool Merino Print Boxer Brief

    Pros

    • No chafing
    • Extremely comfortable and sweat-wicking

    Cons

    • Baggier fit than others

    Merino Wool is much finer than the yarn used to make your favourite winter jumper. It also has natural thermo-regulating properties, helping to keep you cool when it’s hot and warm when it’s chilly.

    Our testers found these boxers incredibly comfortable, with no sign of them being pulled out of place or rubbing at all.

    However, they have a baggier fit than others on this list, making them more suitable for low- to medium-impact activities such as strength or recovery work, rather than a track session.

    Material87% merino wool, 13% nylon
    Size rangeSmall (29-31”) to extra extra large (41”-44”)
    Washing instructionsMachine wash gentle
    Advertisement - Continue Reading Below
    5
    Best briefs

    Reebok Quick Dry-Performance Low-Rise Briefs

    Reebok Quick Dry-Performance Low-Rise Briefs

    Pros

    • Stays in place without riding up in the rear
    • Good breathability and moisture-wicking

    Cons

    • Not the best durability

    In a world that’s been taken over by boxers, many men still prefer the support and trimmed-down coverage of briefs, but it can be hard to find running briefs that don’t ride up in the rear. Reebok has gotten the recipe right with their Quick Dry-Performance Briefs, delivering a snug fit that stays in place as you run.

    The briefs manage sweat and heat well, and the material feels soft and smooth on the skin. In terms of comfort they’re outstanding, though they can suffer from some durability issues, as we got a sense that the waistband could wear out relatively quickly. But for a comfy set of running briefs, they win.

    Features at a Glance

    Materials92% Polyester, 8% Spandex
    Size rangeS-XL
    Washing instructionsMachine wash
    6
    Best value

    Under Armour Tech 6” Boxerjock (3 pack)

    Under Armour Tech 6” Boxerjock (3 pack)

    Pros

    • Soft material with comfortable waistband
    • Great price

    Cons

    • May be too bulky for track work

    Having to rearrange your underwear mid-run is enough to knock anyone off their stride. Fortunately, the Boxerjock’s tight fit and soft material allows them to move with the body, while the elasticated waistband meant they stayed in place without digging in at all — ideal for strength sessions and lower body exercises like lunges.

    They were comfortable to wear under workout clothes, though a handful of our testers said they were a bit bulky during more strenuous sessions.

    Still, for less than £35 for a pack of three, these are a bargain.

    Material90% polyester, 10% elastane
    Sizes availableXS-3XL
    Washing instructionsMachine wash cold
    Advertisement - Continue Reading Below
    7
    Most comfortable

    Stance Staple Boxer Brief Wholester

    Stance Staple Boxer Brief Wholester

    Pros

    • Great quality
    • Excellent, glove-like fit

    Cons

    • Pricey for one pair

    Our stance on these impeccable boxers couldn’t be any clearer — we love them. They’re made using a single piece of true rib microfibre, which fitted like a glove and proved incredibly comfortable for a range of activities — both exercise-related and otherwise.

    They were tight enough to offer plenty of support and they didn’t bunch or ride up, despite the longer legs, so testers had no trouble with chafing.

    Material65% Modal, 26% Lyocell, 9% Elastane
    Sizes availableS-XL
    Washing instructionsNot specified
    Watch Next 
    a pair of briefs and a pair of boxer shorts
    Advertisement - Continue Reading Below