A Perfect Oval Bottom – The Foundation of Every Beautiful Crochet Bag When we crochet a bag, everything begins with one thing: a strong, clean, perfectly shaped base. If the foundation is stable, the whole bag will keep its shape beautifully - whether it's a tote, a crossbody, a market bag or a structured everyday handbag. In my Oval Bottom for the Bag video tutorial, I show step-by-step how to create an evenly shaped oval base using cotton rope yarn. The technique is beginner-friendly, repetitive, and extremely satisfying to work with. But one of the most common questions I receive is this: “How can I make the oval 1 or 2 rounds bigger?” Today’s blog post answers exactly this - and a little more. Why the Oval Bottom Is So Special The oval shape grows from two straight sides and two curved ends.