There’s been some feedback that this hat knits up big. If you need to make it smaller then it is worked in multiples of 14 stitches so just take out a repeat or for a slouchier look cast on 14 fewer stitches and the increase up to the full stitch count for the main part of the hat

For reference the recommended yarn is a wool/acrylic which doesn’t block or stretch as much as a pure wool or an alpaca yarn so please take the characteristics of your yarn into account