The Under Armour HeatGear 3" Stretch Woven Running Short features a lightweight, stretch woven fabric that delivers superior comfort and mobility. The hidden reverse-entry pocket is perfect for a small media player, keys, cash, or an ID. The built-in power mesh offers great breathability, comfort, and anti-microbial protection. Fitted for a snug fit. HeatGear® is best for weather between 55 and 75 degrees. 3" inseam. 84% polyester/16% spandex. Waistband: 88% polyester/12% spandex. Imported.