Color...Black Pattern/Design...Print (logo, etc.) Material...Nylon Bag Size...A4 size storage possible Seasonality...Spring, Summer, Autumn, Winter Suitable for all genders and ages. Features front, back, and inner pockets. Can also hold water bottles on both sides. The depth is wide, 10 cm. I think it's a safe size for children's field trips. There is some dirt on both the inside and outside, but it's not noticeable on the outside because it's black.