There is a knit-a-long for this pattern:
https://www.ravelry.com/discuss/countrywoolers/4037306/

Broken Rib Version in Forest Colorway
Tired of having hats that don’t fit? This design allows you to adjust the fit AFTER it’s made, by placing the buttons
exactly where you need them. This oversize beret slouches on your head for maximum warmth.

countrywool * 59 spring road * hudson * ny * 12534 (518)828-4554
on the web: www.Countrywool.com

Two versions included in this pattern: English Rib produces a heavier, warmer & thicker beret.

Three Sizes: adult forehead around: small: (19”), medium (20”), adult large (21”)

Gauges:
English Rib 3.5 stitches = 1” using two strands of yarn held together
Broken Rib 4 stitches = 1” using two strands of yarn held together

Materials:
1 skein – KID SETA kid mohair/silk (25 grams * 230 yards) OLIVE
2 skeins – ULTRA ALPACA LIGHT alpaca/wool (50 grams * 144 yards) PEAT MIX
For English Rib Version: 16” circular #5 AND #3 or needles needed for gauge
set of 4 double point #6 needles
For Broken Rib Version: 16” circular #6 AND #3 or needles needed for gauge
set of 4 double point #6 needles

Notions:
darning needle * 3 – ½” buttons * tape measure * 1 clipping stitch marker