I have been looking for an answer to this question. Now i have my vest added a few patches guy i work is a club member and said Don't put anything on the back of your vest if you do you can get the (EDIT) kicked out of you. I am very proud of owning my HD and want to put either the emblem or just the words HD on the back of it. So if yo put anything on the back of your vest its open season o you. I am joining HOG here shortly how big is the patch they give you? I don't trust my co-worker the mc club has taken over his life, anything he says comes with join my club and you wont think about it. Thanks for the help.