Use any needles and yarn you have to make any size you like! Select the options you want then press the button to generate specific instructions.
Or... enter head circumference: inches (optional)
Determine the gauge using the needles and yarn you intend to use for the body of the hat. A 16-inch circular knitting needle is good for most sizes.stitches per inch(es)
Extra snug ribbing/brim?
Fold over brim?