There are many different types of running shorts. Available in an abundance of styles, lengths, and colors, they are also made with or without pockets. There are running shorts designed to be form-fitting and others made to provide a looser fit. The best type and style of running shorts is generally a matter of personal preference.

Running shorts are available in varying lengths, indicated by the inseam measurement. Inseams typically range from one inch (2.5 cm) to seven inches (17.8 cm) long. Shorter styles may be good for sprints, while longer shorts may be beneficial during long distance, slower-paced runs. However, length is a personal preference and some body types may be better suited to certain lengths.

V-notch shorts are the most commonly sold type of running shorts. A pair of v-notch shorts features an outside seam that runs most of the length of the leg. Once the seam reaches the bottom inch or two, it is notched in an upside-down, v-shaped formation.

Split-leg running shorts are a bit different. Split-leg shorts aren't sewn down the length of the leg, but designed so that the front panel overlaps the back panel. Split-leg shorts are said to offer a high level of flexibility.

Running shorts are sold in men's, women's, and unisex styles. As men and women are shaped differently, choosing a pair of shorts cut specifically for your gender is essential. A quality pair of running shorts will be designed to fit the waist, thighs, and hips of the gender for which they are made. Unisex shorts are designed to be worn by either sex. Sometimes, however, unisex shorts just don't provide a comfortable enough fit.

Running shorts are made from many different fabrics. It is best to look for shorts that are made of a fabric that is soft, breathable, and absorbent. For your comfort, it is wise to avoid cotton and nylon. These fabrics may chafe or hold moisture.

When choosing running shorts for men, support is a very important issue. Running shorts should have a liner built in, making a jock strap unnecessary. Liners made of a lightweight material are good for offering decent support. Whether you are male or female, it's wise to look for shorts lined with material that allows for good airflow and maximum absorbency. Choosing shorts with a soft fabric liner is also a good idea to prevent chafing in the groin area.