'The Jacket' is a great episode full of wonderfully written jokes and less emphasis on plot that the previous shows tried. Although still lacking in some areas, and not quite hitting the nail on the head with the gags, the show is nevertheless evolving, taking form into something witty and intelligent.
The plot of the episode is notably thin, but as a result leaves lots of room for drawn-out uncomfortable scenes where such is needed, which strengthen it as a whole. Perhaps the best example of this is during Jerry and George's meeting with Alton Benes (Elaine's father) in which the two are completely out of their comfort zone; intimidated and frightened by the man's passive-aggressive nature. Jerry and Jason both play the parts wonderfully, being utterly convincing and hilarious in their awkwardness. Tierney completes the triangle and delivers a performance both utterly amusing and yet convincingly threatening all the same.
The limited scenes with Kramer and Elaine work well, using both characters but I'm starting to get a little tired of Elaine's usual shelving to mere dialogue recaps rather than anything visual. I understand that there simply isn't enough time in one episode to show everything that she talks about, but it's undeniably frustrating when it happens over and over. As usual though both cast members do a great job with what they're given, with Richards as usual stealing any scene that he's in- check out that curious desire for Jerry's old jacket!
In the end, a strong episode from season two; not quite as funny as some previous episodes, but is certainly memorable and distinct from the rest. With great performances, a wonderful guest character and the lots of Jerry's mundane every-day life philosophy, 'The Jacket' is great entertainment.