The Hindsight Mirror just got better....
By adding a foldable & retracting feature to the Hindsight, CRG have created the Hindsight LS [LS meaning "Lane Split"]. There are 2 major benefits with the LS, added clearance during tight riding conditions and reduced width for bike storage.
You can move the mirror from riding position to folded up and perpendicular to the bar with a simple hit on the go..... And hit it back to the same riding position on the go as well.