I think the betsy ross flag and the thin blue line go together well
Thin Blue Line Betsy Ross Flag Flexfit (Black)
I really like this cap as it shows support for law enforcement which I am retired from. My only complaint is that it is not adjustable with Velcro or snaps on the back for fit like other caps; otherwise I would have given it a 5 star rating. I ordered a L/XL cap (I normally wear a large) and it was too big, so I had to return and get the S/M cap, which was a little snug but I stretched it out to fit.