A 9cm round iron on Outlaw Orchestra Patch.
Place a tea towel over the patch that is in postion on the garment of choice and iron it on through the towel for a minute and a half thereabouts. Allow to cool. On items that will be stretched such as jeans or baseball caps its worth three or four needle and thread stiches to be sure it'll last years of concerts and festivals.
SELECT IRON ON PATCH SHIPPING (UK £0.70)