How to Buy Running Shorts
Running shorts are a crucial piece of equipment, especially for Summer running. They’re designed to minimize weight and maximize airflow, helping you stay cool, dry, and mobile on the hottest days. Even better, most running shorts can fit comfortably under a pair of sweats or jogging pants, so you can take your sweats off after warming up and be ready to go. Most shorts feature important details like pockets for smaller items like keys.
That said, how often you wear your running shorts depends on personal preference. Runners who overheat easily or prefer extra mobility might wear shorts even for cold-weather runs. Others prefer running tights, even in Summer, as they offer better coverage from UV rays and can reduce thigh chafing.
Why You Need Running Shorts
There are two main reasons runners can benefit from a high-quality pair of shorts specifically designed for running. First, running shorts are designed first and foremost to help you stay cool. Not only do they leave most of your legs bare to maximize your body’s ability to cool itself by sweating, they’re often made of moisture-wicking fabrics that help you stay dry. Second, running shorts don’t impede your movements. They’re often made of stretchy, ultralight fabrics that allow your legs and hips to move freely and don’t weigh you down.
Why Running Shorts Have Liners
Most running shorts come with a built-in liner. This liner is cut like briefs and is typically made of thin fabric or mesh. There are two purposes to a mesh liner in running shorts. First, it helps moisture escape by absorbing it and wicking it outward. Second, it adds breathability, as the mesh fabric doesn’t hold heat or cling tightly to the body when wet.
Natural vs. Synthetic Fabrics: Pros & Cons
Most running shorts are made of high-performance synthetic fabrics like nylon, polyester, and spandex. That’s because these fabrics wick sweat very well and are extremely lightweight and flexible. Many are also very durable, so they’ll stand up to heavy use over time. While natural fabrics are more environmentally friendly than synthetics, they typically won’t give the same level of performance. Cotton in particular tends to hold moisture instead of letting it evaporate, which can cause you to become hot and wet when you work out in it. There are, however, other options as some shorts made of synthetic fabrics are now made with some recycled materials.
Types of Running Shorts
While all running shorts are designed to be comfortable and flexible, there are a few different types to choose from. Make sure to get a pair of running shorts that fit your body type and running style. Most high-quality running shorts use lightweight fabric that wicks sweat and dries quickly. Their waistbands have an elastic band and/or a drawstring for a firm fit and better adjustability. Many running shorts also have water-resistant pockets to store small items like phones, gels, keys, or wallets.
Split Running Shorts
Split running shorts have overlapping fabric on the outside of the hip that gives you more freedom with each stride. They’re a great fit for sprinters, mountain runners, or runners with larger thighs. Most split shorts come with built-in briefs for coverage.
V-Notch Shorts
Similar to split shorts, notched running shorts have a V-shaped cut in the material (a side hem vent) that provides a little extra mobility in your quads and IT bands. They’re a great option if you need a balance of freedom and coverage.
Compression Shorts
Compression running shorts fit tightly around your thighs and extend down toward your knees. Their tight fit helps prevent chafing between the thighs and gives your muscles some extra support and stability. Their skintight design also makes them an effective base layer that you can wear under shorts, sweats, or jogging pants. Compression shorts also offer some notable performance improvements. In one study on runners who use compression running designs, researchers found that there was less muscle displacement and less muscle activation, which could provide extra stability and reduce impact forces. If you’ve been injured, consult a doctor to see if compression shorts might help.
2-in-1 Running Shorts
2-in-1 running shorts combine the stability and anti-chafing perks of compression shorts with the design of split or V-notch shorts. Instead of briefs, 2-in-1 shorts use built-in compression shorts as the base layer beneath a lightweight, durable outer fabric. These offer more coverage than running shorts with a liner.
Trail Running Shorts
Trail running shorts often use extra-durable materials to withstand heavy use on rough terrain. They often come with a zippered pocket to help keep your keys and phone secure.
Road Running Shorts
Road running shorts are usually split or V-notch shorts with ample breathability and support. These durable shorts are typically made of lightweight material and often include small pockets for keys, phones, and other small essentials. A good pair of road running shorts should withstand a marathon distance without slipping, riding up, or getting drenched.
Track Shorts
Track shorts are extremely light and thin. They also tend to be short, with three to five inches in the inseam (the length between the groin and end of the fabric). These shorts help maximize mobility for sprinters and track runners.
How Running Shorts Should Fit
Running shorts, especially those with internal liners or briefs, should feel light and unrestrictive. They should help prevent chafing and dry quickly. Good running shorts have a waistband that stays put at any pace without sagging or riding up. The waistband should hug your waist or hip, whichever is most comfortable. Some runners prefer a higher waistband that rests near their navel, which lets their glutes and hips move freely, while other runners may prefer the gentle compression of a lower waistband. As long as your shorts don’t feel baggy, the fit through the thigh is a matter of preference. Some running shorts, like compression shorts, fit snugly around the leg. Others, like split running shorts, have a looser fit for more airflow. Pick whichever fit feels best.
What’s the best length for running shorts?
The best length for running shorts depends on your needs. The most common measurement of their length is the inseam, which measures the distance from the groin to the end of the shorts fabric. A 3-inch inseam is common for women’s running shorts. Shorts with 3-inch inseams expose more of the thigh and offer maximum flexibility. Shorts with 5-inch and 7-inch inseams offer more coverage and better protection from chafing.
Shopping Tips
To get the best running shorts for your needs, it’s best to shop at a place that accurately describes its fabrics, explains what type of running the shorts work best for, and has a clear return policy. You may want to try on a pair that’s a size up or down, depending on your body type. For shorts with an elastic waistband, consider ordering a pair one size up in case they're too tight. You’ll also need to consider your needs. What features are you looking for?
Important Features to Consider When Shopping for Running Shorts
When shopping online or in-store for a new pair of running shorts, consider the following:
Length: What length feels comfortable and matches your running style?
Fabric: Do you need lightweight shorts to maximize speed or a stretchy, durable pair for uneven terrain?
Compression: Will your muscles benefit from additional support?
Sweat-Wicking & UV Protection: How hot is your climate? Will your shorts need to dry fast?
Pockets: What do you plan to carry while you run, and how much space do you need?
Cleaning Running Shorts
Most running shorts are machine-washable in cold water with like colors. Make sure not to use fabric softener, which can ruin their sweat-wicking properties. Don’t iron or dry clean them. Tumble dry your shorts on low, and avoid high heat, which can cause the fabric to shrink.