I need some knitting wisdom. I’m looking for a way to cast on that creates a bulky flat edge. Like this: if you knit some ribbing and then bind off all stitches knitwise, the bound off edge causes the ribbing to be splayed out, and the edge is inflexible. I’m looking to create that with a cast on edge. I cannot figure out how to do it. Is there a bulky inflexible cast on? Would I go back later and crochet an edge around the bottom? Note: in this case knitting from the top down is not an option. Anyone have any suggestions? Tia!