The dress code at Gramercy Tavern in Manhattan is business casual.
Jackets for men are optional, but collared shirts would be appropriate, especially in the more formal setting of the Dining Room. Smart jeans can be worn, particularly in the walk-in Tavern area, where the atmosphere is a little more casual.
It is advisable that overly casual attire such as t-shirts, tank tops, shorts, sneakers, and sandals be avoided.