Leather material made from solid full grain leather with drill fabric on the inside it is the hardest and most durable leather which made from a top layer of the buffalo skin it resists moisture very well and will get more beautiful on aging it is pure leather and has disorderly wrinkles, scars, scratches on its surface which looks stunning ideal for holding 15 inch laptop, ipad, a4 books, mobile phone, wallet, pens, etc. Perfect for company executives, lawyers, military personnel, college students, etc. Suitable for your daily life, travel and business purpose used as a tote briefcase, messenger bag, shoulder bag, laptop backpack, etc.