Mystery Ranch Golf Mahal Backpack Disc Golf Bag Blue Main Compartment Holds 12-18 discs and the Collapsible Side Pockets Hold an Additional 6-10 Discs Features the "Futura Yoke" for Maximum Comfort, Even When Carrying 40 Discs The difference between a large and a medium bag is not that amount of discs that they hold, it's the size of the "Futura Yoke". The medium bag fits 5'6" - 6'2", and the Large fits 6'2" and up. Weather Proof YKK Uretech Zippers Beautifully Designed Bag - Reinforced with Laminate Foam For Structure - Great Quality!