This is the second headband I’ve made based on the Mijo dishcloth pattern. I chained 11 and did 32 repeats for a large adult head, fairly tight fit as it will stretch.
It’s quite broad but comfortable in the hand (I find v narrow bands fiddly to crochet but I think chaining 9 could also work). Actually rather nice!
The Elle yarn gives good stitch definition and is cheap and widely available, compared to Kartopu, which is silkier and a bit plumper (though the same weight), with slightly less crisp stitch definition but lovely in the hand.