A new inspired by le mans design from speed icons designer joel clark featuring a pair of 1970s gulf racing 917s this is original unofficial art inspired by porsche it is unofficial and in no way associated with porsche porsche and 917 and related marks are registered trademarks of dr ing hcf porsche agt shirt design reads speed iconsour crew neck short sleeved mens t shirts are 100 premium cotton in a soft pre shrunk jersey knit our womens t shirts are lighter weight 150