Product Placement Blog ➞ Clothing & OutfitsNike Blue T-Shirt Worn by Jason Alexander as George Costanza in Seinfeld Season 7 Episode 7 “The Secret Code” (1995)December 10, 2019 Sergey TV Show Hi! On Tuesday, December 10, I analyzed a TV Show and product placement was spotted: Nike Blue T-Shirt Worn by Jason Alexander as George Costanza in Seinfeld Season 7 Episode 7 “The Secret Code” (1995).Here are 1 image(s) below: