Innova’s Discover Pack: The Essential Disc Golf Backpack Bag. Perfect as a starter backpack bag and for disc golf adventures when you need just the essentials, we introduce the Discover Pack. The main compartment is roomy enough for 15 discs. The top zipper pocket holds your valuables and is an optional putter pocket. Then there’s the adjustable drink holder and a side pocket with velcro closure. It’s lightweight, easy to carry, and affordable.