Choosing a cool backpack for men could be a challenging task, especially if someone has never purchased one before. Usually, men prefer a big size backpack because this helps them to put maximum stuff in it but having a larger backpack is not a good idea if you are purchasing it for the regular use or only for the traveling purpose. So, it is very important that the one you are purchasing should be fit and not be large enough to make it difficult for you to carry it while you hiking or traveling to next city with your important stuff.