Declare your allegiance to the NFL's most passionate fanbase with this Buffalo Bills Mafia Skull Club T-Shirt from Nike. Engineered from lightweight cotton with a standard fit, it offers all-day breathability and a relaxed feel that stays comfortable through all four quarters of your day. The vibrant Bills Mafia graphics printed on the front let everyone know that you're a part of the league's most legendary league of supporters, whether you're walking around town or tailgating in the Highmark Stadium parking lot.