The Arkel shopper is a grocery getting pannier. That is it's purpose, it's only purpose.
Hauled 32 lbs of groceries home with it tonight. It's like a big grocery bag plus a bit.
I've had it for about a month and each time I shop with it it just gobbles up the groceries.
It folds flat when not in use, if you carefully fold it up.
Very nice, very purposeful bag. I love it.
Bill.
http://www.arkel-od.com/us/all-categori ... dable.html

Update. My Arkel Shopper just continues to be the best bike shopping pannier ever. Love it.

Great to hear. I have their Utility Basket, but I'm also looking for a more basic grocery pannier, and this seems to be a bit closer to that

I have 2 banjo brother's grocery panniers. They're nowhere near as nice, but a local company and half the price. They're not waterproof on the top, but I usually have enough food stockpiled that I don't really need to shop in the rain anyway.