While there isn't an official dress code for the PGA Show, here are a few suggestions from prior PGA Show attendees and the PGA Show team:
Comfortable Shoes—with so many exhibitors to see, make sure you've got comfortable walking shoes in your suitcase!
Dress in Layers—from PGA Show Demo Day to the PGA Show floor, you can go from hot to cold quickly, so be sure to dress in layers to stay comfortable regardless of where you are.