This is an official 2013 Red Bull Racing Teamline product. This amazing Infiniti Red Bull Racing shirt combines coolness and chick. The fancy graphic shows details of Sebastian Vettel’s helmet and race car and unifies them into a marvelous print. Sebastian Vettel’s signature on the right sleeve, his logo on the chest as well as Infiniti Red Bull Racing logo on the left sleeve set stylish highlights. Material: 100% Cotton Graphic with details of helmet and race car Silver colored print Sebastian Vettel signature Sebastian Vettel logo Infiniti Red Bull Racing logo A sizing advice. Red Bull tops run slightly on the tighter side. If you are accustomed to buy Medium size Polos but like a bit more room, Large should fit better. Or, if you purchase Medium or Large polos depending on brands, Large should also fit better. This would apply to all sizes. Again, this is an advice based on observation, users' preferences and customers comments.