Big Hyzer Disc Golf Backpack Ergo 2 Holds 18 disc vertically, and 20 discs horizontally with 3-4 discs in the putter pocket making total disc capacity at 21-24 discs Improved Rain Fly for quick disc access which fly is secured to bag 1000D Nylon construction - 1650 D Ballistic Nylon bottom New Seamless Straps create a strap that can never come loose Improved insulated bottles pockets hold bottles easily on consistently - Larger under-disc storage compartment - Larger, increased capacity, side pockets