Many ponytail and messy bun hats start with an opening that's tight around your hair. This shell stitch hat by Lauren of Daisy Cottage Designs has a larger opening, which makes it easier to slip on over your hair bun.

The shell stitch design gives this a nice texture and the added bow makes it extra special. This and many of Lauren's other patterns are free, but you can also buy the PDF version for easy printing and saving.

Shell Stitch Messy Bun Crochet Hat Pattern from Daisy Cottage Designs