These are the fabrics I chose for the Cosmo Bag.
The top fabric will be the main fabric, the middle fabric will be the trim, and the bottom fabric will be the lining. I cut all the pieces out today and the trillion interfacing pieces. I am using Decor Bond for the interfacing. The pattern called for Shape Flex but my shop did not have that. But with this being such a large bag I thing the extra stiffness from the Decor Bond will be perfect. I do have the outside of the bag sewn together and it stands up by itself! This bag will be so cute!