Running can be classified into long-distance and short-distance races. Any race that falls between 3k and above is usually considered a long-distance race, and such races require maximum comfort for your leg muscles and every other part of your body in general. Running in swim shorts is a controversial topic. Some people believe running in swim shorts is more comfortable than running in regular shorts. In contrast, others argue that running in long pants is better.
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Will your swim short meet the basic criteria needed to compete in a racing event, be it short or long? You may probably want to ask yourself “Can I run in swim shorts?”
Yes, you can run in swim shorts, swim trunks, and every other type of shorts including swim jammers, swim trunks, board shorts, etc. As long as they are durable, lightweight, and free, why not.
I’ve been running for years and have tried both swim shorts and regular running shorts. I’ve concluded that both options have benefits and drawbacks, but ultimately it comes down to personal preference.
Running Shorts vs Swim Shorts

Running shorts and swim trunks are two types of shorts that serve different purposes and are designed differently. The main differences between the two are:
1. Running shorts are made from sweat-wicking fabrics
Running shorts are made from materials that are designed to wick sweat away from the body and keep you dry during a workout. They are usually made from lightweight, breathable, and stretchy materials such as polyester or nylon. On the other hand, swim trunks are made from materials that are designed to be water-resistant and quick-drying.
2. Swim trunks, on the other hand, may or may not have a lining
Running shorts usually come with a built-in brief or liner that provides support and prevents chafing during a workout. Swim trunks, on the other hand, may or may not have a lining, and if they do, it is usually made from mesh to allow for water to drain quickly.
3. Running shorts are typically shorter than swim trunks
Running shorts are typically shorter than swim trunks, with most styles falling above the knee. Swim trunks, on the other hand, come in a variety of lengths, from mid-thigh to just above the knee.
4. Swim trunks may or may not have pockets
Running shorts often have pockets, either on the side or back, that are designed to hold small items like keys or a phone. Swim trunks may or may not have pockets, and if they do, they are usually minimal and designed to drain water quickly.
Running shorts and swim trunks are both designed for different activities and have unique features that cater to their specific purposes. Running shorts are designed to be lightweight, breathable, and provide support during a workout, while swim trunks are designed to be water-resistant, quick-drying, and comfortable in and out of the water
Swim Shorts Pros
- They’re lightweight and easy to move around in, which makes them ideal for hot weather runs where you don’t want anything heavy or bulky on your body.
- They’re quick-drying, so they won’t hold water weight or weigh you down after a swim.
- They’re breathable and will help keep you cool during warm weather.
- They’re stretchy enough so they don’t chafe when you bend over or crouch down during a run (if you wear them low enough on your hips).
- Some brands have pockets built into their designs, which can be useful for storing keys or other items while you’re out running
Are Swim Shorts Suitable for Running?
If you see running as a hobby or necessity, then running in the following swim shorts should serve the purpose in the short term until you get proper running shorts.
1. Board shorts
Board shorts are typically made from nylon or polyester with a mesh lining to improve breathability. While they don’t provide much coverage, board shorts are great at keeping you cool and dry during your workout.
2. Swim trunks
Swim trunks are the perfect choice for running. They’re lightweight, have a shorter inseam than the average running short, and they don’t get in the way when you’re in motion.
Pros of Running in Swim Shorts
1. Swim shorts are versatile
Swim shorts are versatile enough to be worn for just about any activity. They’re great for running, swimming, and even golfing! You can also wear them around town to show off your athletic side or just to make it easier to head straight into the water after your run.
2. Wearing running shorts can keep you safe
If you run early in the morning or late at night, wearing running shorts will help keep you safe. If you wear too revealing shorts, people may not see you as a runner and may think you are just out for a stroll. They might not be as aware of potential dangers or avoid giving you the right-of-way when they should.
3. They are lightweight
Running in swim shorts is not only comfortable but also lightweight. The material used to make these shorts is lightweight so that it does not make you feel burdened during your run.
Cons of Running in Swim Shorts
1. Lacks breathability
The biggest downside is that they don’t breathe as well as running shorts. Swim shorts have a lot of material and are usually made out of polyester blends. This makes them great for water sports but not so great for hot weather activities like running.
2. Not ideal for long-distance racing
Running in swim shorts isn’t ideal for long-distance racing or training. You’ll need to wear something over your swim shorts if the race is longer than a 5K. This is because they won’t offer any compression or support. This could lead to chafing or skin irritation.
Types of Running Shorts
Running shorts come in different styles and designs, but there are basically three styles of running shorts as I would be explaining below:
1. V-shaped shorts
The most common style of running shorts is the V-shaped short, which features a high waistband that sits at the top of the hipbone and ends in a V-shaped hemline. These types of shorts have an elastic waistband that allows for easy on-and-off access and a comfortable fit.
2. Compression shorts
Compression shorts are made of high-tech fabrics that help reduce muscle vibration, thereby reducing fatigue. They also help reduce muscle vibration, which can lead to more power and speed.
Compression shorts are made of special fabrics that squeeze tight around your leg muscles. This helps prevent blood from pooling in the lower legs and gives your muscles more oxygen to do their job.
Compression shorts also have a built-in band at the bottom that helps hold them in place. They’re ideal for running because they keep your legs warm and prevent chafing against the skin.
Compression shorts are designed for running and other sports where you want to be protected from the sun’s rays or stay cool during a workout.
4. Split shorts
Split shorts are an evolution of traditional running shorts. They have an elastic band that goes around your waist, but instead of having side seams all the way down they have them only in the back half.
This makes it possible to wear longer tops with these shorts without having to worry about them riding up or showing off too much skin when you bend over.
How to Choose the Right Swim Shorts for Running
1. The length of the shorts
The length of the shorts is one of the most important factors to consider when buying running shorts.
If you are taller, you should go for longer shorts that will cover your buttocks and prevent chafing. If you are shorter, then you can choose shorts that are shorter than normal, as they will make it easier for you to move around without feeling restricted.
- The 3-inch length short – These running shorts give the best ventilation and scope of movement, making them ideal for cutthroat sprinters. In other words, if you intend to go pro, then this should be your best bet.
- The 5-inch length running short – Anyone who runs on the two tracks and trails will do well purchasing this length to serve both purposes equally. Running shorts with a five-inch inseam gives adaptability and is the most famous decision among sprinters – professionals and non-professionals alike.
- The 7-inch length running shorts – These shorts are slightly above the knee region and are incredible for aiding trail sprinters to shield their legs from branches and creepy crawlies.
In other words, anyone running through mountain trails or bush paths should pick this length above the other two mentioned earlier, however, ensure the pair is anti-chafe, especially as you are likely to run for long periods.
2. The material of the shorts
The material of the shorts is an important factor to consider. Generally, there are two types of materials: synthetic and cotton. Cotton is more comfortable and breathable than synthetic materials. However, finding running shorts made with this material can be hard.
3. Fabric type
Every fabric has its advantages and disadvantages, so choosing the fabric that suits you best is important.
A good example would be cotton fabric which is breathable and absorbs sweat well but can also become heavy when wet and does not dry quickly.
On the other hand, technical fabrics such as nylon or polyester provide greater durability and wicking properties but can be less breathable than cotton fabrics.
Are There Any Safety Concerns When Running in Swim Shorts?
The answer is yes. But you should know that there are some things to keep in mind.
Swim trunks are not as comfortable as workout shorts, and they will get wet. If you’re doing any kind of high-impact exercise like running or jumping, you may find yourself uncomfortable with the shorts getting wet.
The same goes for some forms of yoga, especially hot yoga. If you plan on exercising in a pool or ocean, it’s probably not a good idea to wear your swim trunks.
If you are going to wear your swim trunks for exercise, make sure they are made from quick-dry material so they won’t cling to your skin when wet.
Can Swim Shorts be Worn for Other Workouts?
Swim shorts are designed specifically for swimming and water-based activities. While they may be comfortable and functional for swimming, they may not be the best option for other types of workouts.
In addition, swim shorts are made from lightweight, quick-drying materials such as nylon or polyester. While this can make them comfortable and functional for swimming, it may not be ideal for other workouts.
Can I Use Running Trunks as Swim Trunks?
Swim shorts may not be the best choice for running in cold weather as they are made of lightweight materials that are designed to dry quickly when wet. This can be uncomfortable in colder temperatures, as the material may not provide enough insulation to keep you warm.
Also, swim shorts are not designed for running and may not have features such as pockets, reflective detailing, or a built-in liner for support and comfort.
What is the ideal length for running shorts?
The ideal length for running shorts can vary depending on personal preference and the type of running you will be doing. However, most runners prefer shorts with a length that falls above the knee and allows for freedom of movement without restricting the range of motion. In general, a length between 2-5 inches is considered suitable for running shorts, with shorter lengths typically being preferred for shorter distances and longer lengths for longer distances.
What is the best fabric for running shorts?
The best fabric for running shorts is one that is lightweight, breathable, and moisture-wicking. Some popular materials for running shorts include polyester, nylon, and spandex blends. These fabrics are designed to keep you cool and dry during your runs by wicking sweat away from your body and allowing for airflow.
Is it okay to use compression shorts for running?
Yes, it is okay to use compression shorts for running. Compression shorts are designed to provide support and help reduce muscle fatigue and soreness during exercise. They are made from a blend of spandex and nylon, which allows for stretch and breathability. However, compression shorts may not be as breathable as regular running shorts. Therefore it’s important to consider the climate and length of your run before deciding which type of shorts to wear.
Are board shorts suitable for running?
Board shorts may be more suitable for running than swim shorts, as they are often made of more durable and breathable materials. However, they may not be as flexible as swim shorts.
Can I wear compression shorts under swim shorts while running?
Yes, wearing compression shorts under swim shorts can provide the necessary support and prevent chafing during a run.
Can I wear swim shorts for a triathlon?
Yes, swim shorts can be worn for a triathlon, but it is recommended to wear triathlon-specific gear for optimal performance.
Can I wear swim shorts for a marathon?
While wearing swim shorts for a marathon is possible, it is not recommended. Running-specific shorts are designed to provide the necessary support and prevent chafing, which can be especially important during a long-distance race.
Can I wear swim shorts for a 5K?
Yes, swim shorts can be worn for a 5K, but it is recommended to wear running-specific shorts for optimal performance.
Can I wear regular shorts for running instead of swim shorts?
Yes, regular shorts made from lightweight, breathable materials can also be a good option for running.
How do I prevent chafing while running in swim shorts?
To prevent chafing, consider wearing compression shorts underneath your swim shorts. Also, you can prevent it by applying anti-chafing products to areas that are prone to rubbing.
Can swim shorts be worn for long-distance running?
Although swim shorts can be worn for long-distance running, they may not provide enough support for more rigorous activities. Consider wearing compression shorts or other supportive clothing items for added support.
Conclusion
So, if you’re going for a run in swim shorts, yes, you can. Yes, it may have its cons, but the pros of wearing them are more appealing than the cons.
The cons will only affect what you can accomplish on your run. No matter what kind of runner you are, from a casual jogger to an avid marathoner, if you enjoy the benefits of running in swim shorts, feel free to do as much as you like.