NFL Buffalo Bills Two Tone 59Fifty Fitted Cap by New Era. $15.04. Show Your Team Spirit with This National Football League 2Tone 59Fifty Fitted Cap. Features An Embroidered (Raised) Team Logo At Front, A Stitched New Era Flag At Wearer'S Left Side. Interior Includes Branded Taping and A Moisture Absorbing Sweatband. Fitted, Closed Back.