Jacket Bill Bixby wore on "Incredible Hulk" TV series? - hulk tv

Does anyone know the brand / name of the khaki jacket, was the Bill Bixby 70s/early the "Incredible Hulk Series" TV 80 end? I thought it was funny as always, tore all his clothes, but he managed to have the same jacket in the entire series to keep!

Thank you for your help!