I bought the Evoc CC 10L after this thread and some research and I'm delighted with it. Super little bag and it's huge for 10L. I've been a climber and backpacker for years so maybe I'm use to packing well but I could do a summer overnight with a bag this size
It's more than enough for me and my spins. I generally carry the following and it all fits comfortably with spare room.
-Water 2L platypus
-rain jacket (light mountain hardwear jacket)
I haven't been out long enough to bring a sandwich yet but it will fit with space still available.
I bought this one in blue as it was the cheapest including delivery to Ireland.
So far so good.