This may be an accessory...but it is exclusively for winter use. This is a "Lap Land" style winter Sonic hat. It's made of knit fabric with soft interior liner,
& has the tassles that are traditional to this hat type. The Sonic graphic is on a thick faux-leather or possibly plastic item that's stitched to the hat for durability. This appears at Spencers Gifts in winter 2011.