I totally agree. I love the cabas but I don't think it would be that functional in a work setting. The cerf holds its shape and could accomodate files and such for work.I have both, but haven't actually used the Cerf yet... the Cerf would fit perfectly in a professional setting & it's not heavy at all. The Cabas is a great everyday bag and is definitely not as structured as a Cerf. You can't go wrong with either one. If you wanted to tote around documents.. I'd go with the Cerf.
I think both are Ok, with water... like if it we're to get splashed.. it wouldn't do too much damage to either. But definitely not in the pouring rain.