I'm wanting a DCF stuff sack of certain dimensions, and a couple of brief forays into the wilds of the internet hasn't been productive. There are dozens of providers to look through, but I'm hoping for a shortcut here, if anyone knows or can help.

Specifically -- a cylinder style stuff sack, about 18" long and maybe 6" diameter.

Now I wish I'd paid more attention in those Home Ec classes when they were trying to teach us to sew....