Sanjo is a Portuguese brand of trainers created in 1933. This brand was an icon, worn by everyone, until the 70s, when international brands became popular. After decades of being dormant, Sanjo has recently returned, with new models, in new materials, and with new technologies, but maintaining its traditional aesthetics and appealing to the nostalgia that its shoes provoke in countless generations. Sanjo reinvented itself to return to the market. The soles of their trainers are now made of recycled plastic, they have optimized the production process to use fewer resources and have begun to partner with artists and designers to create more modern models. The brand now sells not only shoes but also clothing and accessories.