HONGMEIRhinestone Bridal Belt Crystal Wedding Dress Belt Shiny Wedding Accessories

Q: Would this fit a woman that wears a size dress?

I wear anything from a 12-18 depending the style/sizing guide of dress, and I had fairly long tails going down my back when I wore it. I'm not sure this answers your question since you didn't list a dress size.

Q: Can this be sewn directly onto the dress?

Mine was simply hot glued onto the ribbon, but it had a mesh type backing and it peeled the first time I used it, so I would guess it would be pretty easy to peal up and then sew/tack down. The actual quality is pretty good for the price and it is VERY shinny. I added pictures to my review of this product so those might help?