Here is my second effort at a knitting bag and I'm much happier. I've increased the height to about 15" which is approximately 3" more than the original. I revamped the pockets on the outside so that I can carry either a book or magazine on the outside. The pocket where you see the knitting needles in the picture will hold a separate needle roll which I'm in the process of creating now. I really think this bag will work, but it's not something I will be producing a bunch of!! Just look at what I got today - a huge roll of something that is exactly like tyvek, but another brand name. The roll is 36" long and is black rather than the usual white that tyvek comes in. It shrinks/melts wonderfully so I'm a very happy camper. There's fun, fun, fun to be had with this! Thanks Calvin!!!