Just before placing handcuffs on Kimble in his jail cell Detective Campbell helps Kimble into his sport jacket. However when Kimble was arrested he was wearing a white dress shirt and slacks but not his sport jacket.
When Kimble is waiting for help in the hospital, an elevator to the side opens showing there is no dark line or crack between the elevator and the corridor, revealing that it is just a small room with a sliding door instead of an actual elevator.
When Kimble finally makes it back to Howie Keever's apartment he is given a clean, white, pressed dress shirt by Keever who is played by Tim Considine. Considine is clearly shorter and thinner than David Janssen. So much so that there is no way a shirt belonging to him would fit Kimble.