This backpack uses a combination of nylon and leather materials. I think it can be used for both business and casual occasions. It's made very sturdy, and as you can see in the 8th and 9th photos, there is some damage to the corners, but there are no other noticeable damages or stains. It can fit a large laptop like a Macbook Pro 16 inch. Size (cm) Width: 29 Height: 40 Depth: 12