Easy, fast to crochet & you only need 1 skein of yarn. You can wear it as a slouch hat or fold the band in half for a more traditional hat. The body of the hat is all single crochet & then the hat band is made up of pretty clusters. There is only one size (21 inch circumference) but if you need to make the hat band smaller it is quite easy to do so. I personally love this hat & I hope everyone enjoys it too!