The long lines mark their four Tour de France wins, while the medium lines symbolise successes in stage races and the shorter lines represent one-day and stage victories.
Wins in UCI WorldTour races are in blue and other races are in white, while the gaps between the lines represent future successes. Team Sky principal Sir Dave Brailsford said: “We’re really excited to be able to announce this partnership between Team Sky and Castelli.
“They will be more than a kit supplier; they will be an innovation partner. We will continue to push hard to make sure our riders have the best clothing and equipment.
“We spent a lot of time thinking about our new kit and what we wanted it to represent visually. We wanted to find a way of celebrating the success we have had as a team, but also to make sure we keep our mind firmly on the future.”
Although their clothing supplier has changed, Team Sky will continue to ride Pinarello bikes next year.