Made out of 89% polyester 11% spandex. The Fabric has a DWR (durable water-resistent) finish, anti-microbial properties and is super lightweight and stretchy. These bad boys have a 6" Inseam, just like your dad wore. New Elastic Waistband with Alpha Sizing and with internal and external capable drawstring for extra secure fit. Mesh-lined pockets for swimming potential and a secret fold-over pocket. One button-down back pocket and one zipper back pocket big enough for the largest of iPhones (or Android, we hear you). Also a sneaky zipper pocket along the right pocket inseam.