Good quality fabric and sturdy zippers, very comfortable to wear with padded and adjustable straps. Fits my 15" laptop easily and gives good padding and protection. Lots of internal pockets for your mobile, keys, wallet etc -so you can keep everything organised. The external USB cable is so convenient, makes it so much easier being able to charge my mobile while on the go! I've been using this bag for my daily commute to university for the past several weeks and am very happy with it.