Derived from the word "sling" which means suspend (something), especially with a strap, so that it hangs loosely in a particular position, is the innovation of a sling backpack. Many decades ago, many wouldn't have considered carrying their small belongings in anything but in their pockets or an ordinary bag. Because of the succession of many influences around the world, comes the evolution of smaller bags such as a sling backpack. Its history is global. Different cultures have come up with their own version of sling bags. However, they all serve the same purpose and role. This is to make a bag easy to carry and convenient to wear. Sling backpack are usually small in size, slimmer in shape yet functional. It is big enough for everyone's daily essentials like a phone, a wallet, keys, pocket books and other portable stuff that a sling backpack can take. Due to its invention, both men and women's possessions have found their most suitable place. Since many countries have different varieties of a sling backpack, it is also made from numerous kinds of materials- from leather to fabric ones. Its design and style also vary which certainly fits everyone's taste.