This pattern is a pdf chart only, designed by me using Stitch Fiddle.
It has not been test knitted by others.
The explanation of symbols used is on the bottom of the chart.
Cap is knit mostly in the round, with the exception of the flaps.
Flaps are knit using short rows.
You can use wrap and turn or any other method you prefer for your short row turns.
The approximate circumference is 16.5 inches using 4mm needles and Bernat Super Value yarn.