Hiking backpack, 28L. REI collab with National Park Service for NPS Centennial in 2016. Women's Medium. Olive green color. Gently used for a few short hikes but mostly has been sitting in a closet. Very good condition. Multiple pockets, gear loop, pocket hydration bladder (bladder not included). Mesh back has good ventilation and lumbar pad. Side bottle pockets, front stash pocket, belt zipper pockets.