The bow shock-wave - very high subsonic flight, just below the speed of sound. Some surfaces of the aircraft are already supersonic - there is local supersonic flow. The mass condensation occurs in the low pressure area directly behind the bow shock-wave.
A bicycle shop in Altlandsberg, Germany advertises their goods with a wall of around 120 bikes mounted on the building’s exterior in lieu of a sign ! It’s hard to mistake what business they’re in !