This portable cooler bag can hold 2 cans beverage in an insulated bag that can be attached to your golf bag/backpack. Made of 600D polyester with a PEVA foil lining that provides full coverage inside with 360-degree temp insulation. The detachable keychain strap makes it easy to carry and attach to a golf bag/cart or backpack when full and can fold up when empty and fit just about anywhere. Ideal for golf or tennis tournament giveaway. Enough stock is always available.