QMx Firefly Jayne's Hat Replica Our Jayne's hat is made using a pattern that's based on the screen-used hat - you know, the one hand knitted by Ma Cobb for her boy Firefly costume designer Shawna Trpcic and actor Adam Baldwin, who portrayed Jayne, have said our pattern looks very much like the real thing And the colors are a very true match Made of very soft acrylic yarn, we hope our cunning Firefly Jayne's Hat Replica will keep you warm in your travels Ma Cobb Approves. An essential piece for every Firefly fan