Swift fabric is four-way stretch, sweat-wicking, and lightweight - four-way stretch - sweat-wicking - lightweight Designed for: Run Secret pocket: stash your stuff in the secret liner pocket Zippered pocket: Stash your stuff in this discreet seam pocket Shine-bright : Reflective detail helps keep you on the radar in low light Continuous drawcord: Won't get pulled inside or lost in the wash Built-in liner : Built-in liner offers extra coverage Rise and inseam: Low rise, 2.5" inseam