Just for fun, here's another list. Think of all the specific clothing items that have been central somehow in the story lines. Here's a few.
The puffy shirt The Russian hat Kramer's polyester jacket Puddy's fur coat Puddy's 8 ball jacket Elaine's dress from the skinny mirror store Jerry's drycleaning including his mother's fur and the nightie that got him in trouble The Bro The crest jacket Elaine's discounted designer dress