This is the MOST versatile and customizable pattern I've written! So many options. You can use ANY size yarn and ANY size hook! I've included options to either join after each round if you wanted to use different colors OR work in continuous rounds. The best part about this pattern is that each hat can turn out different depending on the size yarn and hook you use! So you can really have fun changing things up :) BASIC SKILLS NECESSARY Knowledge of basic crochet stitches will help and a Link is provided to give instructions on how to work a Foundation Half Double Crochet.