In the case of Pittsburgh , which you referenced , the helmet in its current form did not exist from the era commemorated by their throwbacks .
The Pittsburgh simply wear Pittsburgh 's current , iconic helmet with the three hypocycloids .
In the case of Pittsburgh , which you referenced , the helmet in its current form did not exist from the era commemorated by their throwbacks , so the Steelers simply wear their current , iconic helmet with the three hypocycloids .