From L.L.Bean, these pants feature: Standard athletic fit Straight through hip and thigh Straight leg Shank button is secure and durable Vertical zippered pocket on upper thigh, left side seam for securing items Articulated knee for better fit and active use Lightweight Wrinkle-free Breathable UPF 50 sun protection Wicking, fast drying for great moisture management Stretch fabric Nylon/spandex Machine wash Imported.