This is a written pattern with a few photos to help you with the final construction.

The pattern is written for a smallish adult head but there are notes in the pattern to show where you can make the headband bigger to fit most adult head sizes.

This is a pretty quick knit.

I used 25g of yarn but you might need more if you want to make it a bit bigger.

Note this pattern calls for 3 needles, or 2 needles and a stitch holder. You could also use 2 sets of circulars. This is only for the keyhole portion but the bulk of the pattern uses just 2 needles.

I used acrylic yarn but almost anything will work.