
Why male runners wear thongs or alternative running underwear
You might ask why male runners wear underwear when running, like thongs or other types that are not common for men. The main reasons are comfort, support, and stopping chafing on long runs. Many men think the right underwear helps them move easily under their shorts. It also keeps sweat away and stops skin from getting sore. Some younger athletes like thongs because they are less bulky and feel cooler under tight running shorts. Studies show that picking the right fabric in your shorts or underwear can help you run better by up to 8%. This is because it keeps you cooler and drier. So, wearing underwear when running gives you the best chance for a comfortable run without distractions.
Key Takeaways
-
The right underwear helps male runners feel comfortable and supported. This can help them focus and do better when running.
-
Moisture-wicking fabrics like polyester and nylon pull sweat away. They stop chafing and keep skin dry and healthy.
-
Thongs have less fabric and fewer seams. This means less chafing, less bulk, and less heat. Many runners like thongs for tight shorts or hot days.
-
Trying different underwear styles and fabrics is helpful. It lets you find what fits and feels best for your runs.
-
Good running underwear lets air in, gives support, and keeps you clean. This helps you focus on running and feel good every time.
Why Male Runners Wear Underwear When Running
Comfort and Support
When you get ready for running, you might wonder, "Do you wear underwear with running shorts?" Many male runners say yes, and for good reason. Wearing underwear when running gives you extra comfort and support. If you wear underwear when running in shorts, you help keep everything in place. This makes each step feel smoother and more secure. You do not want distractions during a run, so wearing supportive underwear can make a big difference.
Most men choose underwear made from soft, stretchy materials like nylon, spandex, or cotton blends. These fabrics move with you and do not bunch up under your shorts. Seamless underwear is popular because it fits better and does not rub against your skin. You will notice less irritation and more freedom to move. In fact, a study found that 94% of men felt discomfort when the fabric or fit was wrong. That is why so many male runners look for sports-specific underwear that fits just right.
Younger athletes often follow trends and pick underwear that feels cool and light under their shorts. Hot weather also makes a difference. If you run in a warm climate, you want underwear that keeps you cool and dry. Market trends show more men now want performance underwear for running, not just regular briefs or boxers.
Tip: Try different types of underwear with your running shorts to see what feels best for you.
Sweat and Chafing Prevention
Running means you sweat, especially on long runs. If you wear underwear when running, you help manage sweat and stop chafing. Moisture-wicking underwear pulls sweat away from your skin and spreads it out so it dries faster. This keeps you dry and helps prevent skin problems.
-
Polyester and nylon fibers in underwear help sweat evaporate quickly.
-
Spandex gives a snug fit, so your underwear stays in place under your shorts.
-
Flatlock seams and smooth designs stop the fabric from rubbing and causing chafing.
-
Some underwear even has ventilation panels for extra airflow.
Many runners share stories about how the right underwear kept them dry and comfortable, even on hot days. Fitness trainers and athletes recommend moisture-wicking underwear for better performance and hygiene. If you ever asked, "Do you wear underwear with running shorts or just use running shorts with a liner?" you should know that wearing underwear when running in shorts can help you avoid chafing and stay fresh.
Choosing the right underwear for running is not just about comfort. It is about keeping your skin healthy and making sure you can focus on your performance. Try different styles and fabrics until you find what works for you.
Thongs for Male Runners
Reduced Chafing
You know how annoying chafing can get during a long run. If you have ever finished a run with sore skin, you might want to try thongs. Thongs in sports help you avoid that burning feeling because they have less fabric. When you wear a thong, you get reduced chafing since there are fewer seams and less material rubbing against your skin. Many runners say thongs feel more comfortable and practical than regular underwear. You do not have to worry about bunching or fabric rolling up under your shorts. Athletic thong underwear gives you support where you need it and lets you focus on your running.
Note: If you want to stop chafing, try thongs in sports. You might be surprised by the comfort.
Cooling and Minimal Fabric
Running in hot weather can make you sweat a lot. Thongs in sports help you stay cool because they use minimal fabric. You get more breathability and airflow, which keeps you dry under your shorts. When you wear a thong, you do not feel trapped by heavy underwear. The design of athletic thong underwear lets air move freely, so you feel fresh even on long runs.
Here’s a quick look at how thongs compare to other underwear for running:
Underwear Type |
Fabric Coverage |
Breathability |
Cooling Effect |
Bulk Under Shorts |
---|---|---|---|---|
Thongs |
Minimal |
High |
Excellent |
None |
Briefs |
Moderate |
Medium |
Good |
Some |
Boxer Briefs |
Full |
Low |
Fair |
Noticeable |
Compression Shorts |
Full |
Medium |
Good |
Moderate |
Thongs in sports give you a "less is more" approach. You get comfort and performance without extra weight. Many runners say thongs help them feel lighter and faster. If you want to boost your running performance, try athletic thong underwear for better breathability.
Less Bulk Under Running Tights
If you wear tight running shorts, you know how bulky underwear can feel. Thongs in sports solve this problem. You get less bulk and smoother lines under your shorts. When you wear a thong, you do not see underwear lines or feel extra layers. This makes your running shorts fit better and look better.
Many men who run in tights or compression shorts pick thongs for this reason. Athletic thong underwear stays in place and does not bunch up. You get freedom of movement and a comfortable and practical fit. Thongs in sports let you focus on your running, not your underwear.
Tip: If you want your running shorts to feel like a second skin, try a thong. You might find it is the most comfortable and practical choice for your runs.
Thongs give you a new way to think about running underwear. You get comfort, breathability, and less bulk. Thongs in sports are not just a trend—they help you run better and feel better. If you want to improve your running experience, consider trying a thong or athletic thong underwear. You might never go back to regular underwear for running.
Comfort and Drawbacks
Benefits of Comfort
When you run, you want to feel good the whole time. The right underwear gives comfort and support. This makes running much better. Many runners pick underwear with new fabric technology. These fabrics stretch, breathe, and pull sweat away. You stay dry and cool, even on hard runs. Compression underwear can help your muscles and lower tiredness. Some brands use special designs for more comfort. This lets you move easily and focus on running.
The sports underwear market keeps getting bigger. More people want underwear that feels good and fits well for running. Companies now make underwear with moisture-wicking, flat seams, and soft materials. These features help you avoid distractions and enjoy your run.
Tip: Try different underwear styles to find what fits best for you. If your running shorts have a liner, you might not need regular underwear.
Possible Discomfort or Irritation
Not all underwear is good for running. Sometimes, wearing regular underwear under lined shorts makes two layers. This can trap heat and sweat. It can cause irritation and chafing. Underwear that bunches up or has thick seams can feel bad. Getting too hot can even cause skin problems like fungal infections.
Here are some common problems runners face:
-
Double layers stop air and cause sweating.
-
Seams can press into your skin and cause chafing.
-
Cotton underwear holds sweat, which causes more rubbing.
-
Wearing underwear with compression shorts can feel uncomfortable.
Many runners say running without underwear in lined or compression shorts feels better. You get more airflow and less chance of irritation. Always check the fit and fabric before you go for a run.
Hygiene and Skin Health
Good hygiene is important if you run a lot. Underwear made from moisture-wicking fabrics like polyester or nylon helps sweat dry fast. This keeps your skin dry and lowers the risk of chafing and irritation. These fabrics also stop bacteria from growing. This means less smell and fewer infections.
Some underwear uses bamboo viscose or merino wool. These materials are soft, control sweat, and fight bacteria. Seamless designs and anti-chafing panels protect your skin when running. Many runners say they feel cleaner and healthier with these features.
Note: Clean, dry skin is important for healthy running. Pick underwear that fits well and keeps you comfortable every run.
Best Athletic Thong Underwear and Alternatives

Choosing the Best Athletic Thong Underwear
When you pick athletic thong underwear for running, you want it to feel good. It should let air in and fit well. Most runners say comfort is the most important thing. Look for soft and stretchy fabrics like polyester, nylon, or modal. These materials pull sweat away and help you stay dry. Some thongs have special treatments to stop bad smells and germs. Seamless styles help stop rubbing and skin problems when you run. You might want a thong that dries fast after you work out. Many brands now make BPA-free, tagless, and wedgie-free thongs for more comfort.
OutdoorGearLab reviews say thongs like the Icebreaker Siren Thong and Smartwool Everyday Merino Thong are great for letting air in, stopping smells, and lasting a long time. The Lululemon Light as Air Thong feels smooth and light, but some runners see it under tight shorts. If you want the best thongs for working out, pick ones that fit snug and do not move around.
Tip: Always put on clean underwear after you run to keep your skin healthy and fresh.
Alternatives: Briefs, Boxer Briefs, Compression Shorts
You can wear other types of underwear for running. Briefs and boxer briefs cover more and give more support. Many runners like boxer briefs because they fit tight and do not slide up. These styles use fabrics that pull sweat away and have flat seams to stop rubbing. Sports underwear often has wide waistbands to keep them in place. Compression shorts are another choice. They fit tight and help your muscles feel less tired, but studies say they do not make you run faster.
Underwear Type |
Pros |
Cons |
---|---|---|
Thongs |
Not bulky, lets air in, no VPL |
Less coverage, takes time to get used to |
Briefs |
Good support, fits tight |
Some bulk, lines can show |
Boxer Briefs |
Covers well, stays put |
Can feel hot, might slide up |
Compression Shorts |
Helps muscles, stops rubbing |
No proof they help you run faster, can feel hot |
Pros and Cons Comparison
You want to know which underwear is best for running. Thongs have less bulk and let more air in. Briefs and boxer briefs give more support and cover more. Compression shorts help your muscles but do not make you faster. Reviews say the best thongs for working out are comfy, dry fast, and let air in. Some runners like other types for more support.

The best underwear for you depends on what you need. Try different kinds to see what you like. Sports underwear can help you feel good and focus on your run.
When you run, you want your underwear to feel good and give support. What you pick is important because everyone feels different in their shorts. Some runners wear underwear to stop chafing. Others use shorts with liners for a smoother fit. Most people, about 92%, say comfort is the most important thing in running underwear. The table below shows what runners care about most:
Factor / Feature |
Statistic / Consumer Behavior |
---|---|
Comfort considered crucial |
92% of consumers |
Anatomical pouch preference |
65% prefer enhanced support designs |
Interest in size customization |
78% show interest in size specificity customization |
Demand increase for modal blends |
35% increase in demand |
Growth in bamboo fabric demand |
42% year-over-year growth |
Moisture management valued |
72% of consumers |
Performance wear replacement cycle |
Every 5-6 months |
Performance wear purchase volume |
10-12 units annually |
Regional size variations |
Northeast prefers smaller sizes; Southeast prefers larger sizes |
Age-related size changes |
Size increases 1-3 inches with age, affecting comfort and support needs |

You may need to try different shorts and underwear to find what feels best. Some runners wear underwear for extra support. Others do not wear it so they get more airflow. Your best choice depends on how you run, the weather, and how your shorts fit. Keep trying new things until you find what makes running feel great every time.
FAQ
Do you need to wear underwear with running shorts?
You do not have to wear underwear with running shorts. Many running shorts have built-in liners. If you want extra support or comfort, you can add underwear. Try both ways to see what feels best for you.
Are thongs comfortable for long runs?
Thongs can feel comfortable on long runs if you pick the right fabric and fit. Many runners say thongs help stop chafing and feel cooler. You may need to try a few brands before you find your favorite.
How do you prevent chafing when running?
Tip: Pick moisture-wicking underwear, like thongs or briefs, to help stop chafing.
You can also use anti-chafe creams and make sure your underwear fits snugly. Avoid cotton because it holds sweat and causes rubbing.
What fabric is best for running underwear?
Look for underwear made from polyester, nylon, or merino wool. These fabrics pull sweat away and dry fast. They also help keep you cool and stop skin irritation. Avoid cotton because it stays wet and can cause chafing.
Can you wear compression shorts without underwear?
Yes, you can wear compression shorts without underwear. Most compression shorts have a built-in liner. This design gives you support and helps prevent chafing. Many runners prefer this for a smoother, cooler feel.