From Lululemon: Max out your stride in these shorts designed with extra room to let you move freely. Made with Swift fabric that is four-way stretch, sweat-wicking, and lightweight. swift ultra light Four-way stretch Swift Ultra Light fabric is an airy, lightweight fabric woven to wick sweat and provide airflow—seriously, it’s like being in the buff four-way stretch lightweight sweat-wicking woven for airflow features 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 Inseam: 4" Continuous drawcord: Won't get pulled inside or lost in the wash Low-rise: Keeps you feeling cool yet covered Built-in liner : Built-in liner offers extra coverage Very good pre owned condition Very little visible signs of wear Non smoking home Message with questions Thanks for looking