River has taken the market by storm and is a disc with THE GLIDE. It's easy to throw and fits most player's power and skill levels. River is a fairway control driver and while it's not the fastest disc we have made and doesn't have the widest wing ever made, it is a disc for accurate driving and good control. With small fade and amazing glide, you can really let it fly on to those big anhyzer curves. About Opto: Opto is made out of some of the world’s most durable plastics. It comes in a variety of beautiful translucent colors. The Opto Line plastic has been developed to withstand severe punishment and extreme conditions better than other plastics.
Flight rating: 7,7,-1,1
About Opto Air: Opto Air uses the same material as our durable Opto Line plastic. It is modified and the runs are done in a different way to achieve a stunning result of lighter weight discs that still has a layer of solid plastic at the tip and bottom of the rim to protect the alternated material that is mostly centered in the middle of the rim but also spread out slightly over the top of the discs to keep the weight distribution as close as possible to the Opto and Gold Line discs.
Weights listed are scale-weight on all individually listed discs and often do not match manufacturer marked weights.