Each year pistonheads release a range of exclusive designs inspired by the worlds best endurance motor race le mans if youre heading to the circuit de la sarthe in june weve got a shirt for yout shirt design reads phlm13our 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 150g tees made with deluxe 30s soft style yarns for a soft feel