The KegLand Lunchbox / Cooler Bag is big enough to hold a 6 pack with a bit of ice around it.
It can also fit a fair few sammiches! 

Comes with an adjustable shoulder strap that is also detachable. Side pockets can accomodate a wine bottle each side and or party snacks. The front pocket is a perfect fit for the KL31653 or the KL15066