Welcome to NoLimitsTiming - The best resource for running information on the web.

Why Do Running Shorts Have Liners Like Built In Underwear?

Hello! Welcome to our site! As an Amazon affiliate, I may earn commission from some of the links on my site. This is at no cost to you - you pay the same price. Read more on our disclosures page.

why do running shorts have liners like bulit in underwear

There is one simple answer when people ask why do running shorts have liners like bulit-in underwear: Chafing. Some people like to wear shorts when they are running, but chafing can be a problem.

Chafing is a common problem among runners and it can be very uncomfortable, especially if you are wearing something that does not provide enough protection.

This is where liners come in handy because they provide a layer of protection between your skin and the fabric of the shorts. Additionally, the liner can help absorb sweat and keep you cool and comfortable during your run.

There are different types of liners that you can choose from depending on your preference. Some liners are made from cotton while others are made from synthetic materials.

No matter what type of liner you choose, make sure that it is comfortable and will not cause any chafing.

In addition, always test out the liner before using it for a long run to make sure that it does not cause any irritation.

Here are a few key points to discuss:

  1. Why do running shorts have liners like built-in underwear?
  2. What are the different types of liners that you can choose from?
  3. How do you test out a liner before using it for a long run?
  4. Why is chafing a common problem among runners?
  5. How can liners help prevent chafing from occurring during a run?

Why Do Running Shorts Have Liners Like Built-In Underwear?

There are several reasons why running shorts have liners like built-in underwear.

One reason is to prevent chafing

Chafing is a common problem among runners. The liner provides a layer of protection between your skin and the fabric of the shorts, which can help prevent chafing.

Ventilation

Additionally, running can be very hot. You’re sweaty, sticky, and gross. The last thing a runner wants is to wear a thick pair of cotton underwear. The liner can help absorb sweat and keep you cool and comfortable during your run.

Modesty and Comfort

Another reason why some people prefer to wear running shorts with a liner is for modesty purposes. Some people feel more comfortable and modest when they are wearing a liner under their running shorts.

More Freedom of Movement

The flexible, soft liners you find in running shorts provide a more hospitable environment for everything to move freely than do normal underwear. This helps make the run more enjoyable and provides less binding and wedging of material in various parts of your anatomy.

What Are the Different Types of Liners that You Can Choose From?

No matter what your reason is for wanting to wear a liner under your running shorts, there are many different types of liners to choose from.

Some liners are made from cotton while others are made from synthetic materials. Some have a built-in pocket so you can stash your keys or other small items.

Most running shorts have a liner of some sort. Check out these examples.

How Do You Test out A Liner Before Using It for A Long Run?

How do you test out a liner before using it for a long run?

It is always a good idea to test out the liner before using it for a long run. This will help ensure that the liner is comfortable and will not cause any chafing. In addition, testing out the liner beforehand will also help you determine if the liner will cause any irritation.

You’d hate to get 6 miles into a 12 mile run and have unbearable chafing. It’s better to understand how comfortable it is when much closer to home base.

The Final Word

When choosing a liner, make sure to select one that is comfortable and will not cause any chafing. In addition, always test out the liner before using it for a long run to make sure that it does not cause any irritation.

How a liner is viewed depends on the person. Some people choose to wear underwear with the liner and some choose to go commando. There isn’t really a “right” way to do it – it all comes down to how comfortable you feel with it and how hot you get.

Choose wisely…

Frequently Asked Questions


Why is chafing a common problem among runners?

Chafing is a common problem among runners because of the repetitive motion of running. The constant rubbing can cause the skin to become irritated and can lead to chafing.

How can liners help prevent chafing from occurring during a run?

Liners can help prevent chafing by providing a layer of protection between your skin and the fabric of the shorts. Additionally, the liner can help absorb sweat and keep you cool and comfortable during your run.

Do you wear underwear with lined shorts?

Wearing underwear with lined shorts is a personal decision. Most people do not wear underwear with lined shorts because the liner usually provides enough protection. However, some people may choose to wear underwear with a liner if they are concerned about chafing or modesty.


What do guys wear under running shorts?

Many people choose to wear running shorts with a liner because they provide a layer of protection against chafing. Additionally, the liners can help absorb sweat and keep you cool and comfortable during your run.

What are lined shorts?

Lined shorts are a type of garment worn as part of a man’s or woman’s clothing ensemble. They are typically made from lightweight fabric such as cotton, and they have a layer of insulation inside them to keep the wearer warm.

Lined shorts can be worn on their own in warmer weather, or they can be worn as part of a layering system in colder weather. They are often seen as part of a uniform for physical activity, such as running or biking.

What to wear under running shorts?

No one likes chafing! Why wear anything at all?

-You might like to consider moisture-wicking underwear or liners to help prevent you from getting too sweaty and uncomfortable.

-Some tights are specially designed, being tighter and with thicker materials in the right spots than normal tights, which can help reduce the risk of

How should running shorts fit?

It is important to have the proper size and a good fit for your running shorts. While it does not need to be tight, there should be no extra bagginess around your body for the shorts to chafe or irritate you.

You also want to avoid making them too tight or restrictive as this will make it harder and more likely that you

What are 2-in-1 shorts?

Running shorts are a type of workout clothing specifically designed for running. 2 in 1 shorts are typically shorts that have a spandex inner lining with pockets and traditional, looser running shorts on the outside.

Share this post

About the author

Jasper loves to write about fitness, running, and anything else that gets him moving outdoors. He's an avid hiker, backpacker, and climber who loves to stay fit so he can make sure he's healthy enough to enjoy his favorite hobbies. He also spends time writing about his true passions in life.