The four-year extension to the two organisations’ long-term agreement begins on August 31, 2016.
As well as supplying kit and training wear to the England senior team, Saxons, England Sevens, England Women’s and age grade teams, Canterbury will remain official partner of the RFU’s All Schools programme, which aims to increase participation in rugby.
The brand will also become official partner of the 2016 World Rugby U20 Championship, which will be hosted in England.
Chris Stephenson, CEO of Canterbury, says: “The extension to our partnership with England is the next exciting chapter in our 111-year history within rugby.
“Our commitment to the game spans from the grass roots to the very elite of rugby and we are thrilled to continue our relationship with the RFU until beyond the next Rugby World Cup in 2019.
“This new agreement cements our standing as the leading brand in rugby.”