The story of the football pitch made with End-of-Life Tyres in the Prison of Santo Spirito in Siena is a story with a happy ending that unites social sport and environmental protection. It was sponsored by UISP (Italian Union Sports for Everybody) and Ecopneus. The jail is, indeed, an integrating part of the territory, whilst sport represents a tool for educating to sociability and relationships for all citizens. Made in 2015 inside Siena’s jail, which currently hosts about 70 inmates, the sports area was built also thanks to the tyres recovered by Ecopneus with its intervention of collection from the historical stock of Rapolano, near Siena.