Well he may not have THE suit he's got the JK one on

[elway]

I noticed his other choice of wardrobe. The Jonhathan Kent suit complete with the light blue unbuttoned flannel and white tee. Brought out for those serious talks with Kara :D

[TampaVille]

You have a good point. He's been wearing those outfits since Season 1, but he DID wear them especially when he was performing the father figure role for Kara.