The Offenhauser FLATHEADS FOREVER LONG SLEEVE T SHIRT is made of medium weight 100% Cotton Blend. Featuring a comfortable crew neck and long sleeves in your choice of black or white. “Flatheads” on the right sleeve and “Forever” printed on the left sleeve. Official Offenhauser “O” Logo on the pocket front. Offenhauser Equipment flathead V-8 engine on the back.