â
Discover the ultimate comfort and support with our functional underwear for running collection. Designed for active lifestyles, these pieces feature moisture-wicking fabrics and breathable mesh to keep you cool and dry during your workouts. With ergonomic designs and a snug fit, they provide the perfect balance of support and freedom of movement. Whether you prefer boxer briefs or longer styles, our selection ensures you stay comfortable mile after mile. Elevate your running experience with high-performance underwear that moves with you.
$36.87-$47.50
WAS: $47.50*
My son wants these and only these underwear for the last 4- 5 years and absolutely loves them. ... Great fit, very comfortable ... Comfortable Fit ... These under garments are so comfortable and feel so good to my skin that they make me so
5
kcbrown05
Purchased as a gift, but I was informed they are comfortable, soft, airy, and right fit. They like them so much, they are going to order more.
5
Football son
My son wants these and only these underwear for the last 4- 5 years and absolutely loves them.
5
Shoeman
Tight comfortable fit with good support. If you prefer a little loose go one size up.
5
130Beyer
Fit perfectly. Great fabric.. Love it. Purchase again.
5
Tottie
These under garments are so comfortable and feel so good to my skin that they make me so relaxing.
$44.00
These are the most comfy underwear out. ... These are my go to underwear and fit very comfortably, will buy again for sure. ... The performance shorts are perfect for me because they stay in place and move
5
Albreazy
I ’ ve been throwing these under my basketball shorts for my rec league games and don ’ t feel any additional weight under my waist
5
BKNH15
These are the most comfy underwear out. Period. Perfect fit, length, no ride up, dry fit for hot day.
5
atadidasman
The performance shorts are perfect for me because they stay in place and move easily.
5
chuck
These are my go to underwear and fit very comfortably, will buy again for sure.
5
Chris B
I bought these last month. It was a great deal on my favorite boxers.
$44.00
They have everything, from softness to functionality. ... These performance tech underwear are comfortable, cool, and durable. ... Great Underwear ... These are very comfortable and the material is very
5
SkierDave1
Love these! Will definitely be buying more!
5
BS162
I bought these on sale and got a great deal on an outstanding pair of boxer briefs. They have everything, from softness to functionality. They also come in great colors. I will definitely be buying these again.
5
Faustino
These fit great and are very comfortable.
5
Nick Matz
Size is right. Keeps everything in place nothing shifting out of place getting pinched
5
bswiss8
These are very comfortable and the material is very breathable.
$62.00
Seems to like them, better for the
5
Rjwiz
For my kid. Seems to like them, better for the price.
$44.00
I always depend on UA comfort technology for mens quality underwear. ... Love my underwear from UA. ... I would definitely recommend these for anyone looking for comfort and
5
Wreck18
Hands down the best UA has to offer.
5
Bob194844
The UA Tech Mesh provides cool comfort, and can be worn under any garment. I always depend on UA comfort technology for mens quality underwear.
5
Notyouraveragedad1
Perfect fit and great support! The 9 ” is great for taller/long legged guys who are looking for a boxer that doesn ’ t ride up and bunch. The mesh material is fantastic as well and isn ’ t like the spandex compression that the other boxer provides.
5
ZTBillingsley
Fast shipping. Extremely satisfied with product. Kinda leary to order clothes online, but Under Armour sizing is perfect and fits as described
5
Cyrus B
As advertised; stylish, comfortable flattering from all angles. I am more than happy with my purchase.
$10.97-$29.50
WAS: $29.50*
They run a little small but are great to sleep in. ... I really like these performance boxer briefs. ... I wore these and they feel great, kept the sweat away and they feel really comfortable throughout the
5
best fitter
I am happy to buy this deal- it was perfect. I recommend this to any gentleman.
5
Serg2344
I wore these and they feel great, kept the sweat away and they feel really comfortable throughout the day. I would recommend anyone to try them and see how nice they are. Also the color and design is nice.
5
CTG77
I really like these performance boxer briefs. They are lightweight, but still have decent compression to stay where they should without riding up and becoming uncomfortable. They fit properly for the listed size and my wife thinks they look a lot better on me than the old 2XL ones I was wearing from before I lost weight. I am now about 6' 4 ''/ 220 and used to weigh a lot more, so it's nice to find affordable gear that fits well and looks good since I 'm having to replace most of my stuff. I purchased the Large size this time and they fit very comfortably for all- day wear.
5
Ron m
Very soft and comfortable- I would say this size is for a small man or size 4 woman, I know my wife likes to sleep in these and therefore did not fit me. Easy to wash and the elastic is not tight...
5
Workout shorts
Very comfortable underwear. The stay in place during workouts and a the seam and tangles feature mimimizes chafing. They are great for everyday wear for all types of activities. I would recommend them to anyone looking for comfortable underwear.
$44.00
Favorite underwear of husband's ... Best underwear in the business ... Great fit and breathable. Wear them everyday. ... Great fit, very comfortable! ... The under armour briefs were just what I needed and have become a favorite for
5
Chantilla
I ’ m happy with my purchase will purchase more again
5
Bigdaddy
Been wearing these for about 4 yrs. very comfortable and help with sweating and oder.
5
DSWVU
On a recent trip out of town I forgot to pack a very important part of every overnight trip. I was so glad that I was able to get same day pickup from my go to store for my sports needs. The under armour briefs were just what I needed and have become a favorite for me.
5
WAshopper
He says they are comfortable, do n't bunch up, and do n't show a line under clothes.
5
Hollywood069
Bought these last week and love them!!! Don ’ t want any other brand after purchasing these!!!
$44.00
These are the only underwear my husband will use now. ... He said it is his favorite underwear! ... Amazing underwear ... Very comfy and great price ... Very comfortable and
5
Onemoretime
Fits well and ventilated.
5
Cold Bier
These are absolutely the best boxers that I have. Fit great and incredibly comfortable. Highly recommend.
5
D6767
Very comfy and great price
5
Uatw 25
These are the best boxers to wear great feel and colors
5
Ames0925
Bought these for my oldest son. He loves how they fit and how they feel. He said it is his favorite underwear!
$44.00
Material is extremely comfortable and great for staying cool and dry. ... Most comfortable boxers ever! ... The UA Boxerjock is the most comfortable boxer I have ever
5
MLRTYM300
I love how soft and breathable these boxer briefs are on my skin. They definitely help cool you down when it gets hot outside and not feel all sweaty
5
mlower0
Extremely comfortable when working out or daily wear…also very durable!
5
Gus G
the size and durability of this product is why i keep coming back and buying repeatably
5
Mboorsma01
I purchased these for extended hikes. The longer leg length prevents chafing. Material is extremely comfortable and great for staying cool and dry.
5
Kimmerz
My fiancé loves these boxer briefs. He says they are his favorite. They ’ re cool, comfy and breathable
$47.50
Comfortable! ... These are sleek and smooth while providing proper support. ... Tight comfortable fit with good support. ... They are very comfortable. ... These are very
5
Bob 23
Really soft. Husband loves them. Washes perfect no color fade
5
Football son
My son wants these and only these underwear for the last 4- 5 years and absolutely loves them.
5
Shoeman
Tight comfortable fit with good support. If you prefer a little loose go one size up.
5
130Beyer
Fit perfectly. Great fabric.. Love it. Purchase again.
5
Tottie
These under garments are so comfortable and feel so good to my skin that they make me so relaxing.
$45.00
Good quality and comfortable. ... Love them very stylist and comfortable dirt. ... Not 100% cotton but i 'll take that over polyester stuff! ... These are more of a cotton blend rather than drifit but he likes
5
Rebecca392
Long enough, great quality. My son likes them he is in football and weightlifting
5
Tikmd
My son loves these. Appear to be quality, and comfortable. Guess these are trending right now.
5
holly
5
Kendrick
Love them very stylist and comfortable dirt. My daily wear
5
Amanda1212
My son loves these! They ’ re comfortable have so many cool Designs. They ’ re expensive and that ’s the only downfall.
$29.50
Comfy ... Bought 2 packs for my son.. he said they are very comfortable ... I bought these men's fashion underwear a couple of weeks ago and am very pleased with their fit and
5
RichPA7
I bought these men's fashion underwear a couple of weeks ago and am very pleased with their fit and comfort.
5
AshEileen417
Bought 2 packs for my son.... he said they are very comfortable
$42.00
These under Armour underwear are a great fit. ... I ’ m a big fan of Under Armor and these maybe the most comfortable pair of workout underwear I ’ ve ever
5
bigtallmichael
Bought these in a pinch and they were great. Very comfortable.
5
DCJersey
Needed some sweat wicking briefs and these are the best.
5
Redman
These under Armour underwear are a great fit. Fully breathable, structurally strong, and awesome variety of colors. Highly recommended.
5
E Beazy
I ’ m a big fan of Under Armor and these maybe the most comfortable pair of workout underwear I ’ ve ever worn
5
WStriking1
Comfortable, good fit, and well made. Fabric is soft and holds up after washing. Happy with this purchase.
$24.97-$32.00
WAS: $32.00*
This is great while playing sports and running( and casually really). ... Love the fit and softness ... This product is very comfortable and feels great to
5
Brooke84
These are the best underwear ever! I can not imagine wearing any other brand.
5
Kaat
I don ’ t sweat as bad as I do in these panties I live them
5
Ad12172
Love the fit and softness
5
ChelsF
This product is very comfortable and feels great to wear
5
KevinBinCLT
No lines with a smooth look for the wife to wear to work and be active when she gets home.
$47.50
Great product ... I liked these so much I went back and got more. ... Great fabric. ... Awesome look! ... Husband loves them. ... Love it. ... Always buy these! ... Finally ... Love must
5
Bob 23
Really soft. Husband loves them. Washes perfect no color fade
5
Football son
My son wants these and only these underwear for the last 4- 5 years and absolutely loves them.
5
Shoeman
Tight comfortable fit with good support. If you prefer a little loose go one size up.
5
130Beyer
Fit perfectly. Great fabric.. Love it. Purchase again.
5
Tottie
These under garments are so comfortable and feel so good to my skin that they make me so relaxing.
$45.00
UA Boxerjocks were my go- to underwear for everyday wear and for activities( hiking, tennis, gym workouts) when I did n't need full- on compression
5
DCruns
These feel really nice and the boys enjoy not being so compressed as in other pairs I have. They are also very flattering as it looks like I have a pair. It is a little on the pricier side but well worth it.
5
You barely feel the ball bag and everything else is the same as always great pair of underwear
5
BradleyGr
These fit great. Very comfortable. Pouch helps and keeps the boys cool.
5
OMoore 91911
This was my husband ’s first pair of underwear with a pocket. He says they are comfortable and asked me to order some more pairs for him.
5
Caesar7
I ’ ve been wearing Underarmour boxerjocks for at least 10 years. These are the top of the line so far. I will be buying more!
When selecting functional underwear for running, consider moisture-wicking properties to keep you dry and comfortable. Look for breathable materials that allow for airflow and help regulate temperature during your run. Additionally, a snug fit without excessive bulk is important to prevent chafing and ensure freedom of movement.
The material of functional underwear plays a crucial role in performance by influencing comfort and moisture management. Fabrics that wick away sweat help keep you dry, reducing the risk of irritation. Lightweight and stretchy materials also enhance mobility, allowing for a more enjoyable running experience.
For running, styles such as boxer briefs or fitted trunks are often preferred as they provide support and minimize movement. These styles typically offer a balance of coverage and comfort, helping to prevent chafing during long runs. It's essential to choose a style that aligns with your personal comfort preferences and running habits.
Yes, when choosing functional underwear for running in different weather conditions, consider the fabric weight and insulation properties. In warmer weather, lightweight and breathable materials are ideal, while in cooler conditions, you may want options that provide a bit more warmth without sacrificing moisture management. Layering can also be beneficial for varying temperatures.
The fit of functional underwear is extremely important for running, as it directly affects comfort and performance. A snug, supportive fit helps prevent chafing and movement during runs, while too loose a fit can lead to discomfort and distractions. It's essential to find a size that provides support without being restrictive.
Continue browsing
(11) 
