What are your favorite light weight bags...

wow! I wouldnt have guessed....some of those look really heavy online

No, I consider them all lightweight and the ones I mentioned "some stlyes" you need to check those brands IRL because some styles from those designers are a little heavier, while others are very light.
I forgot to mention the regular size (not the large) Gustto Baca. VERY lightweight!
Good luck!