Step aside, string bean. This Mandelbaums Gym t-shirt is only for the real Seinfeld fans! This t-shirt features the logo for Mandelbaum's Gym, named after the frail weightlifter Izzy Mandelbaum. Izzy made two memorable appearances on Seinfeld, and both times, he used the catchphrase that appears on this t-shirt, "It's Go Time". If you want to live in a butcher shop and you're a fan of Seinfeld, this Mandelbaums Gym t-shirt is a must have. Everyone that sees you in this Mandelbaums Gym t-shirt will be chanting, "Mandelbaum! Mandelbaum! Mandelbaum!".