Youtube Tutorial: https://youtu.be/qMZAcipCaVg

Materials

Yarn - (I use Wonder Woolen by Fleece Artist) it is about 1/8 of an inch, medium weight. You can use whatever yarn you want

Crochet Hook - I used a 4mm but you can use whatever hook you want

Needle, Scissors and Thread in a matching colour

Baseball Cap that fits you

Gauge Swatch (not necessary but if you want to copy exactly what I did then here it is)

Measurement: 2 inches across the circle (unstretched and unwashed)