Running shorts

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Black New Balance running shorts.

Running shorts are a specialized form of shorts worn by runners.

Materials[edit]

Running shorts are designed to facilitate comfort and free movement during exercise. Their materials are lightweight and hard-wearing. Many running shorts include an inner lining that acts as underwear, so you don't have to wear underwear with running shorts. Polyester is a common fabric in running shorts.

Variants[edit]

Many running shorts have a seam cut up the side of each leg to enable freer movement. Manufacturers define running shorts according to the length of the leg which is not cut. For example, a 3/4 seam means that 1/4 of the length is cut.

· "Full split shorts" are [shortest/longest - needs definition]

  • 1/2 split seam shorts are the shortest
  • 3/4 split seam shorts are short, but not as short as 1/2 split seam shorts
  • Square leg shorts have no split at all

Longer shorts are not ideal for running. A runner's stride may pull up the fabric of his or her shorts, which can cause discomfort. Nonetheless, some runners prefer longer shorts because they cover a greater portion of their legs.

Some runners use athletic hot pants as running shorts. Like 1/2 split seam shorts, hot pants do not encumber leg movement.

Lycra running shorts are an alternative to conventional, polyester-based shorts. In most cases, lycra running shorts reach the mid-thigh area. They are skin-tight, so they allow for more flexible, unencumbered movement.