It is a double function bag that you can use on the front, called a check pack, or swing it to the back which considers a backpack. Mostly target for travel, camping, jogging, biking, or daily working. It is easy for you to organize everything you have from pockets into the bag so you will never lose anything. Especially when on travel, every important document, wallet, passport, money is kept in front and nobody can steal from you. Leather is thick and rigid so more protection of valuable items