Why Do Workout Shorts Have Liners?

Workout shorts have liners for a variety of reasons. Some shorts have liners to wick away sweat, while others have liners for modesty. Still others have liners for both reasons. Keep reading to learn more about why workout shorts have liners.


Workout shorts have several advantages for athletes of all kinds. They are often made from breathable, lightweight fabrics that provide increased comfort and maneuverability. Many styles also come with a built-in underwear-style liner for added support. The liner can provide several benefits to wearers and can help to keep workout gear from shifting or chafing during activity. This guide will explain the purpose of liners in workout shorts and how they can contribute to a more comfortable, efficient workout routine.

History of Workout Shorts

Workout shorts have been around since the late 1970s, when they were first introduced as a comfortable and practical alternative to long sweatpants and shorts. Workout shorts quickly gained popularity amongst athletes and everyday people who were looking for comfortable activewear. Over the years, workout shorts have evolved and now often feature liners for added comfort. In this article, we’ll discuss the history of workout shorts and how liners came to be.

Early Athletic Wear

Workout shorts have a long and interesting history. They were once a standard to any serious athlete’s wardrobe. Before athletic apparel became fashionable and commonplace, some of the most common fabrics used to make workout shorts were wool, canvas, cotton twill, denim, and even corduroy! These materials were selected for their strength and durability to withstand rigorous physical activity.

In the early 1900s, sleeves-down sports shirts combined with a set of woolen knickers replaced the traditional uniforms of white linen trousers and waistcoat colors including pantaloons. Knickerbockers with suspenders (aka “long johns”) later became popular as activewear for sporting activities due to their comfortability and fit. Eventually, in 1933 shorts instead of knickers or britches began to be accepted as acceptable athletic wear. With the invention of nylon material in 1938, shorts became even lighter than their cotton predecessors – an excellent form of breathability during physical activity.

The first pair of liners found inside a pair of workout shorts were introduced in 1949 by label Jockey International who began manufacturing men’s briefs with legs included specifically designed for athletes. This design allowed men’s sweat-wicking ability during warm summer months and eased movement for athletes as they exercised; making them more comfortable when performing various activities or exercises. Their invention has been so successful that this style remains popular among many athletes today—most commonly used in basketball or running all major brands have modern versions with improved design elements from the original Jockey shorts from 1949!

Development of Modern Workout Shorts

Workout shorts have come a long way since the days of a simple pair of gym shorts. Modern workout shorts have been designed with enhanced features to provide comfort and support during an intense workout session. These features include elastic waistbands, mesh fabric for breathability, built-in liners for convenience, quick drying technology and sweat-wicking fabric to keep athletes cool.

Modern workout shorts were first seen in the late 1970s but the crossover from classic gym shorts to workout gear took place due to corporate endorsements of professional runners and rugby players. It was during this time period that brands such as Champion and Reebok produced briefs made with lightweight fabrics to provide support and durability when competing in marathons and other sports. The incorporation of lycra/spandex into the design helped tight leg openings which allowed for better flexibility and movement when running or playing a sport.

The addition of built-in liners was an important development in the evolution of modern exercise wear as it not only protected athletes from friction caused by exercising but also provided added insulation from cold weather conditions – especially during winter months. In addition, the use of moisture-wicking technology ensured that sweat was quickly removed away from skin – thus keeping users dry while they were engaged in their activity. With such advances, modern day workout shorts have become capable of meeting any challenge on any terrain or environment making them a necessary piece of equipment for any training regimen today.

Benefits of Liners

Workout shorts with liners offer a range of benefits that are essential for any sports activity. Liners can provide extra comfort, support and moisture-wicking capabilities. They can also improve your performance and reduce the risk of chafing and other skin irritations caused by friction. Let’s explore the benefits of liners in more detail.


A major benefit of liners for workout shorts is added comfort. Mesh liners allow air to circulate around the body, thus keeping the wearer cool and comfortable. The liner also adds a smooth surface to the inner fabric which can minimize chafing from sweat when exercising. Furthermore, many types of liners are made with moisture-wicking fabrics that help to take away sweat from the body to keep the wearer feeling dry. Lastly, some brands of workout shorts include pockets within their liners which are perfect for securely storing small items such as cell phones or audio players.


Workout shorts with liners are designed to provide you with an optimal exercise experience. Liners are made of lightweight, breathable materials, such as nylon and spandex, which promote air circulation while wicking away sweat and moisture from your skin. This ensures that you stay cool, dry and comfortable even during intense workouts. Furthermore, liners keep your skin protected from chafing or irritation caused by rubbing against fabric. Similarly, the liner provides extra coverage for modesty if your gym shorts become see-through when wet after a sweaty session. Thanks to their breathability and lightweight design, liners won’t weigh you down or cause overheating even when worn in hot weather.


One of the most important reasons why workout shorts have liners is to provide protection. Whether you’re running, lifting weights, doing yoga or biking, liners offer a layer between your body and your clothing so that you can stay comfortable for longer periods. Liners also provide compression around the lymphatic system, which helps reduce swelling in joints and muscles. Additionally, this type of liner will oftentimes wick moisture away from the skin and keep sweat away from sensitive areas conducive to chafing, such as inner thighs and groins. Along with their protective features, some liners come with antimicrobial properties designed to help reduce odor – keeping you dry and comfortable throughout your workout.

Different Types of Liners

Workout shorts, running shorts, and cycling shorts all have a liner inside them. Most liners are made of thin, lightweight material such as spandex or polyester. Liners are designed to keep moisture away from the body and to keep the fabric of the shorts from rubbing directly against the skin. In this article, we will look at the different types of liners available and their advantages and disadvantages.

Mesh Liners

Mesh liners, also known as short liners, are lightweight and often made of breathable mesh fabric. They are commonly found in running shorts, basketball shorts and other styles of activewear. Generally, they provide a small amount of extra support under the shorts and are used primarily to keep moisture away from skin while working out. In some cases they also provide added comfort during runs or other physical activities. Mesh liners can be found in both stretchy and non-stretchy options and offer some degree of odor protection as well. Depending on the design, the included pockets may provide extra storage for keys or other items.

Nylon Liners

Nylon liners are a popular option for workout shorts and are most often used in compression apparel or material with greater flexibility. This type of liner is both breathable and lightweight while still offering the support and coverage that athletes need. Nylon liners also resist pilling or bunching up, resulting in a smooth and comfortable fit throughout your workouts. In addition, they make it much easier to slip into a pair of performance-oriented shorts since they become increasingly stretchy when wet, making them ideal for any kind of intensive active activity.

Polyester Liners

Polyester liners are the most common type of liner used because they can wick away moisture and dry quickly, which is ideal for an active lifestyle. Polyester liners also provide a light base layer of protection — they can prevent skin abrasion when running and provide some insulation in cooler temperatures. Polyester liners are available in both lightweight mesh designs, which are perfect for warm climates and gym workouts, or heavier cotton-blend designs, perfect for outdoor adventures. They come in all sorts of shapes, sizes and color combinations as well, enabling you to find something that suits your individual style.


To conclude, workout shorts with liners provide several benefits. They are designed for comfort and performance to improve your workout and give you the support you need. They also provide added protection against moisture, which can help keep you dry during a sweat-inducing activity. Additionally, most liners are made from lightweight and breathable materials, so you won’t become overheated. Finally, many of these shorts come with built-in briefs that help keep everything in place and reduce the amount of chafing caused by repetitive movers. All in all, workout shorts with liners are designed to improve your fitness experience.

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