This is a MAMMUT backpack (ROCK COURIER SE 20). It's perfect for commuting, going to school, traveling, hiking, and more. - Brand: MAMMUT - Color: Black - Size: Approximately 49cm (H) x 28cm (W) x 13cm (D) - Includes a separate PC compartment on the back, making it easy to access. - Chest strap included (adjustable) - No waist belt - All MAMMUT logos are embroidered. Thank you for viewing. I purchased this at a MAMMUT store. I used it for about a year and a half, though not every day. After that, I stored it at home. While there is some wear and tear, there are no major scratches or stains, and there are no problems with the zippers or other accessories. (Please refer to the photos) There is a PC compartment on the back (approx. 37.5 x 24.5 cm) with cushioning for safe carrying. The shoulder straps and back padding are cushioned, and there is a chest strap, so it won't dig into your shoulders even if the load is a bit heavy. I think it can be used in various ways, such as for commuting, going to school, traveling, or hiking, depending on the individual. It's 20L, so it's not too big for women either. This is a used item, so there may be minor scratches. Please purchase only if you understand the condition. Size...11-25 L