The one-season deal will also see OPRO as the club’s official match day sponsor for its opening Aviva Premiership fixture against Exeter Chiefs on September 7.
OPRO sales director Richard Evans says: “I am delighted to add London Welsh to the growing number of professional and international teams from around the world who rely on OPRO to provide protection to their players.
“As rugby continues to become faster and more physical, the importance of wearing a properly fitting mouthguard, which offers high levels of protection while allowing players to perform to their maximum, is of paramount importance.”
