You can use this convertible leather brief backpack in many ways such as handbag,shoulder cross-body bag or backpack.This stylish multi-functional bag with roomy space can reduce the load on the shoulders,reduce weight when traveling,and can meet daily needs.     ITEM OVERVIEW   Material: genuine cow leather. The high quality handbag/ shoulder bag/ back bag give a soft feel and wonderful vintage look. It can be used for several years without expiration.    Size: 15.7"(40cm)L X 10.2"(26cm)H X 4.72"(12cm)W. 1.7kg. Maximum of one laptop computer in 15.6", also can put some books, moblile phone, cards, keys and so on.    Interior Pockets: 2 x large main compartment (contain 1 x secret pocket), 2 x middle pocket(maximum of A5 notebook), 2 x small pocket for cards, bills, tissue, etc. All the Briefcase Backpack, Multifunction Bag, Secret Pocket, Phone Cards, Daily Gift, Back Bag, A5 Notebook, Leather Coin Purse, Quality Handbags