I will upload the pictures as soon as I can, but it is basically has the metal frame of a small rolling luggage with telescope handle. The igloo part is decent insulated silver foam material.
The foldable part is the plastic bottom piece is removable, so the whole thing colapsed/folded flat against the frame ( ~2 inch thick). The frame is 13"x10" and it fits perfectly with my rear rack. There are front legs and back wheels (mounted to bottom of the frame, which I saw them off) that are heavy duty rubber bars (1 inch wide).
I will try to get the pictures today.
-G