Materials:
Yarn- DK weight cotton
Yardage depends on size, 100g will make most sizes (not Adult XL)
Crochet hook 5.5 mm (US )
Tapestry needle
Scissors
Optional: Elastic thread or elastic yarn

Notes:
Cotton naturally stretches out with wear. If you want to ensure the fit of the hat I recommend adding elastic thread or elastic yarn at the Band Rows.

Sizes: Keep in mind that head sizes can vary, especially if you substitute different yarn
Size Diameter of Crown
Baby 4in / 10.5cm
Child S 5in / 13cm
Child L 6in / 15.5cm
Adult S 7in / 18cm
Adult M/L 8in / 20.5cm
Adult XL 9in / 23cm

Be sure to stretch your stitches out a bit before measuring if you’re trying to match the diameter. This doubles as a way to check your gauge