A new take on the classic pistonheads smiley logo graffiti inspired for an urban makeover t shirt design reads a new take on the classic pistonheads smiley logo graffiti inspired for an urban makeover our 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