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The Best Anti-Chafing Running Shorts to Keep You Comfortable on the Go!

The Best Anti-Chafing Running Shorts to Keep You Comfortable on the Go!

Running is a popular form of exercise that offers numerous health benefits. However, many runners face the uncomfortable and sometimes painful issue of chafing. Chafing occurs when the skin rubs against itself or clothing, leading to irritation, redness, and sometimes even blisters. To combat this problem and enhance running comfort, it is crucial to invest in high-quality anti-chafing running shorts. 

These specially designed shorts offer advanced features and materials that reduce friction, can wick sweat and away moisture, and provide a comfortable fit. In this guide, we will explore the top options for anti-chafing running shorts, considering factors such as material, length, moisture-wicking properties, and fit. By selecting the right pair of anti-chafing shorts, you can ensure a comfortable and enjoyable running experience, allowing you to focus on achieving your fitness goals without the distraction of chafing.

What are Anti-Chafing Running Shorts?


Anti-chafing running shorts are a specialized type of athletic wear designed to provide support and comfort to runners while reducing friction and preventing chafing. Chafing is a common problem experienced by runners and occurs when the skin rubs against clothing or itself repeatedly, causing irritation and discomfort.

Anti-chafing shorts are made from synthetic materials that reduce friction between the skin and the seams of the lining of the shorts, allowing runners to move freely without experiencing discomfort. The design of these shorts is also focused on providing proper support to runners, with features like a wide waistband that provides much-needed comfort.

Material Considerations for the Best Anti-Chafing Running Shorts

Here are some of the material considerations for the best anti-chafing running shorts:

Lightweight Materials

When it comes to selecting the perfect pair of anti-chafing running shorts, one of the crucial factors to consider is the material quality fabric from which they are made. Lightweight materials are of utmost importance for avoiding chafing running shorts owing to their several benefits. Specifically, lightweight materials help athletes stay cool while running because they reduce sweating and do not restrict movement.

Breathable Fabrics

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Breathable fabrics are an essential consideration when selecting anti-chafing gear, shoes, or running shorts. These fabrics allow for improved ventilation and airflow, crucial for maintaining a cool and dry environment while running, especially during long runs or hot weather.

One of the commonly used breathable fabric options in modern running shorts is polyester blends. This material is a popular choice due to its excellent moisture-wicking properties, quickly removing sweat from the skin and keeping runners dry.

Stretchy Fabric

Stretchy fabric is a crucial factor to consider when selecting anti-chafing running shorts. These soft fabrics provide improved comfort and mobility for the runner since they can stretch and move with the body, preventing restrictions and irritation.

Spandex, elastane, and polyester blends are the most commonly used stretchy fabrics in running shorts. Spandex and elastane are synthetic materials that can stretch up to 600% of their original size, making them ideal for wearing shorts providing a snug and flexible fit. Meanwhile, polyester blends are stretchy yet durable, making them perfect for long-distance running sessions.

Design Considerations for the Best Anti-Chafing Running Shorts

Here are some of the design considerations to look for: 

Compression Shorts

Compression shorts can be a game-changer for runners who are prone to chafing during long-distance runs. The fixed-in-place fabric on the leg can help prevent friction and reduce irritation in areas like the inner thighs and glutes. For some runners, compression shorts are the only way to prevent chafing in these areas, especially during longer runs where moisture and heat can exacerbate the problem.

Split Shorts

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Split shorts are a type of running shorts that prioritize speed over versatility in design. These shorts are popular among runners who are serious about their training and looking to shave seconds off their personal best times. The defining feature of split shorts is the "split" on the side seam of each leg, which maximizes the legs' range of motion and allows for a more natural stride.

While the length of split shorts can vary, many popular styles have a minimal 3" inseam or even shorter, further prioritizing speed and range of motion. The design of the pockets of these shorts usually focuses on function over form, with very minimal features. A small security pocket in the liner of long shorts is common, but that's about it for additional features.

Pairs of Shorts with a Wide Waistband and a Short Inseam

If you're in the market for a new pair of running shorts, consider a pair with a wide waistband and a short inseam. These types of shorts offer both comfort and functionality, making them an excellent choice for runners who want a loose, comfortable pair of shorts that can keep up with their active lifestyle.

The wide waistband of these shorts helps keep the shorts in place while on the move, so you don't have to adjust them constantly. Additionally, the shorter inseam reduces the risk of inner thigh or thigh chafing while allowing for a wider range of motion, which is essential for running.

Elastic Waistband to Improve Range of Motion and Comfort

An elastic waistband is one of the key features that can greatly improve the range of motion and comfort of anti-chafing running shorts. Unlike rigid waistbands, an elastic waistband style allows for greater flexibility and movement, which is essential for runners who need to maintain their pace and stride throughout their workouts or races.

Furthermore, an elastic waistband can accommodate weight fluctuations that can occur throughout the season or workout. As runners gain or lose weight, their shorts will fit differently. But with an elastic waistband, there is more room for adjustment. This added feature ensures that runners can have a good fit around their hips and waist, preventing any unnecessary movement or discomfort during their run.


In conclusion, finding the perfect pair of anti-chafing running shorts is crucial for long-distance runners who want to optimize their comfort and performance. The main benefits of these favorite running shorts are higher protection against chafing, irritation, and muscle fatigue during repetitive motion.

Undersummers’ Flow Bike Shorts are the perfect pair of anti-chafing shorts for running or other workouts. They are squat-proof and stay in place, are made of a comfortable 4-way stretch fabric, and have a seamless inner thigh to prevent chafing. 

Undersummers caters to all body types, including maternity, and our comprehensive size chart offers precise measurements to ensure an impeccable fit. Visit our website today and find your new favorite anti-chafing running shorts.

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Meet our founder: CarrieRae

Undersummers Shortlettes were created CarrieRae's personal need for comfortable thigh protection when she was working as a teacher. In 2011, her thick thighs rubbed and she needed a comfortable solution.  Pants are blazing hot in the Houston spring/summer months, shorts are not acceptable to wear to work, so she was left with capris and dresses.  Her thighs did not support wearing dresses, thigh chafing was too uncomfortable.  The idea of wearing a breezy dress sounded so comfortable to her, that she created the solution to her problem:  The Original Lace Shortlette®️. She wanted something to wear that was a single layer, the legs stayed put, comfy, and most importantly, pretty.

CarrieRae Munson