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Some leather briefcases have different functions. They were made with attention and if, for example, you use public transportation, you can choose one that has a strap. If you need to walk long distances and you don’t use a car, then you need to have a bag that has a strap, this option makes it easier for you to carry the bag wherever you go. You can adapt it for your own comfort or even remove the strap if you don’t need it anymore.