Real Sociedad B, known as 'Sanse', is the reserve team of La Liga's Real Sociedad and competes in the Spanish Segunda División. Based in San Sebastián, the team represents a key part of one of Spain's most renowned youth academies. Their home matches are played at the Zubieta training complex, the heart of the club's famed development system. The team was founded to provide a competitive platform for the club's brightest prospects, wearing the familiar blue and white stripes of the senior side. The history of Real Sociedad B is rich with success stories, having developed countless players who have become integral to the first team's philosophy of promoting local Basque talent. This pipeline was central to the senior team's peak era of winning the Copa del Rey in 2020 and consistently qualifying for European competition. The current B team squad is filled with promising youngsters aiming to follow in the footsteps of stars like Mikel Oyarzabal, who graduated from this very pathway. The team culture is deeply rooted in the club's 'cantera' philosophy, emphasizing technical skill, tactical understanding, and a strong connection to the region. In short, Real Sociedad B is more than a reserve team; it is the lifeblood of the club's identity and sustained success.