Ok, I counted. I have 8 Rockers and they are all 3-zip. I tried the studded but it wasn't for me, plus it's the two outer pockets that make the Rocker so spacious for it's size and make it so usable to me.
4 of them came with dustbags. The FIG was purchased at the Fall OSS and came with a brown cotton bag and my latest, the Aqua, was from endless and came with a cute blue and black polka dot dustbag. I'm not exactly sure which Rockers the other two bags came with or where I purchased them, but I have another brown cotton one and a brown satin one.