The Innova JK(Juliana Korver) Aviar is a variation of one of the best-selling Innova Discs, the Aviar. The mold is a more flexible, grippier version of Innova’s Pro Plastic, making it a great choice for winter weather and those preferring a tackier grip in their putters. For the KC Pro Aviar lovers out there, this disc flies the same as your stiffer KC mold but with the added comfort of a slightly softer plastic. So use it for straight flying putts, accurate approach and upshots, as well as short drives. This is a great multi-use putter.