Decided for comfort reasons to upgrade from 23mm tires to 32mm tires. Tried several local bike stores for tubes meant for wider tires with no luck. The biggest advantage to these is that the 23 mm tubes in 32 mm tires leak air much faster. These can go several days without needing to have air added.
I called Bikeworks to get a tube for my bike. The tube that I had in my tire was not the right size and was causing a bulge in the tire. The employee was knowledgeable and helpful and knew exactly what size I needed, even though I had no tire size or wheel dimensions. I'll definitley shop here again.
The Continental Tour 700 Tube is well constructed and has a nice weight and feel. I've bought some other brands that were very thin and didn't last as long. Fits perfectly in my 700x32 tire and I like that it comes in a Schrader Valve which is what I prefer. Overall, an excellent tube at a reasonable price!
I used to get my tubes through Performance bike, but constantly had manufacturing defects. These Tubes just feel more quality and it gives me confidence that when I need to use my spare, it would have a flaw and fail to inflate.