Rugged top loading rucksack built to carry essential gear, 30L Capacity, Top loading stuff sack with lid, Side access panel fits most 15” laptops, Bottom vented expansion pocket, Mesh back panel and shoulder straps, Brushed zippered optics pocket on top, Organizer panel, 2Side zippered pockets with mesh water bottle catch pocket front, Padded adjustable shoulder straps with optics holster.