16" X 6.75" X 10.75" tall. I can't say what the included surround adds in width as I cut mine down to fit a cabinet. It isn't much heavier than a featherweight.
I understand carriers that are machine specific are available now. I already had a fairly large totto roller bag which holds the machine plus lots of tools. I can't much see the point of a close fitting bag is another bag is needed for the rest of our stuff. I ordered it from Joanns on a 50% internet sale.