In 1984, Dave and Innova modified the already successful disc design of the Aviar, looking to add some extra distance (hence the name). The XD and a new class of farther-flying discs was born. For the anniversary of Innova’s fourth mold to market, we have again taken what works and improved it. Proto Glow Champion plastic has the durability and stability of our original Glow Champ, with significantly brighter and longer-lasting shine. Proto Glow Champion XDs commemorate 40 years of a classic disc along with the start of a new era for Innova's glow.