I ordered this console case from amazon.co.uk so I could get it on Prime and it arrived promptly on time today.
I really like it and as I hoped it has a pocket on one side to put games in and a rubber band on the other to keep the console in place. It's not as soft as you might think from looking at the photo, it will definitely keep the DS safe.
The only issue I can find with this purchase is that it's not blue it's purple! It has a blue zip though. For me this was not a problem, I think I might even like the purple better. It also has a little carabiner hook which is not shown on the photo which I thought was quite cool.