In recent years, carrying backpacks has been associated mainly with adolescents who pack their books and accessories for them at school. Mounted on braces, usually one or two chambers, they worked perfectly well.
The symbol of comfortable clothes is undoubtedly the Carhartt WIP brand, which has its roots in worker's clothing. Currently, it has become a permanent part of the streetwear look and has become a total 'must have' in street outfits.