Measurements (in inches lying flat): Waist (diameter of waist) 34 Inseam (groin to bottom hem) 9 Great pre-worn condition birddogs invented gym shorts with a built-in liner. Athletes, marathoners, and everyone else all say the same thing: nothing fits or feels better. A supportive liner that actually stays put with no bunching or wedging. Secure pockets that don't bounce. Fabric that takes a beating. They're the shorts every other brand has been trying to reverse-engineer ever since. 89% Polyester & 11% Spandex with a silky-soft spandex liner. Check out the rest of my store — bundle and save more!