Berkeley Bags are a wallet with a coin pocket, a zippered pocket for card storage and cash storage, and a back pocket that stows a cloth foldable grocery bag.
It also comes with a carry handle which allows it to be lengthened or shortened to hold on your wrist or on the shoulder. When the grocery bag is deployed, you can carry the wallet inside the grocery bag. The grocery bag is stitched to the pocket to encourage you to keep the bag together with the wallet, but it can be easily removed.
The Berkeley Bag is a great wallet bag to take with you to a farmers market, etc. It is also great to take in the car and hold your loyalty shopping cards. When you take the wallet with you, you always have a grocery bag to carry the items you brought with you. It is a great emergency bag that you always have with you when you shop.