innova glow halo champion garrett gurthie sonicSonic is a special putter from Innova which is based on the old Hero 235 disc. Disc's shape is a little less like one of the older "frisbee" models, and it has, among other things, grooves on the top that give a good grip to the thumb on top of the disc. In this version, you get a halo glow disc that can glow in the dark. At the same time, it is a signature edition for the American player Garrett Gurthie who plays for Team Innova.