The AAU custom split shorts by TrackBarn are made from a high-quality blend of materials that includes 92% polyester and 8% spandex. This combination of materials provides an excellent balance of durability, flexibility, and comfort, making them ideal for a variety of athletic activities.

Polyester is known for its strength, durability, and resistance to abrasions and tears, making it an excellent choice for sports apparel. It is also lightweight and quick-drying, which helps to keep you cool and comfortable during even the most intense workouts.

The addition of spandex to the fabric blend adds a level of stretchiness that allows the shorts to move with your body, providing a comfortable, non-restrictive fit that allows for a full range of motion. This makes them perfect for activities that require a lot of movement, such as running, jumping, or kicking.

Overall, the combination of polyester and spandex in the AAU custom split shorts ensures that you get the best of both worlds - a durable, long-lasting fabric that is also flexible and comfortable. Whether you're a serious athlete looking to improve your performance or just someone who wants to look and feel great during their workout, these shorts are the perfect choice.