This is Gregory's Rune 20. I've used it for about two years. Size: One size Color: Carbon Black Material: 90% Polyester, 10% Nylon Dimensions: 48.3 x 30.5 x 19.0 cm Capacity: 20 L Weight: 0.84 kg The Rune 20 was born from the award-winning Gregory trail products. It's a sophisticated, technical pack perfect for everyday use, combining innovative air cushion material with a more sustainable, data-driven approach. The foam-free air cushion back panel ensures breathability, distributes pressure, and provides a cooling effect through moisture wicking. Equipped with a Digi Harness Pocket, perfect for storing earphones, train tickets, lip balm, etc. You can safely store small items and take them out quickly. Features a curved, padded shoulder harness that conforms to the body. Adjustable sternum strap. Internal access laptop sleeve and tablet/document sleeve. Zippered mesh pocket and pen slots inside. Zippered quick-access pocket on the top. Stash pocket with key clip on the outside side for swing-around access. Stretch mesh pocket for bottles on the side. Reflective attachment loops on the front. Padded grab handle on the top. Dedicated comfort grip molded zipper pulls. Color: Black系 (Black-based)