Salomon ACS + OG Black Lunar Rock - A journey through the Salomon archives. Tribute to the technical shoes par excellence, the ACS + OG is a modern reinterpretation of an authentic treasure from the archives of the past, of a shoe that for years has dictated the expertise in trail running. This model that has its roots in Salomon's history, now reinvented and revisited with an Agile Chassis™ System, relaunches an authentic trail running icon capable of keeping up with the times.