Oakland Seals

With the team struggling at the gate, it would rechristen itself as the Oakland Seals on December 8, 1967 The ends of the "C" on the crest would close, forming an "O." Also around that time on the home green uniform, the team added a white inner layer to the existing blue number on the back to answer complaints from their fans that the numbers were hard to make out. The addition of the inner white layer created the double outline effect.