A little about Rullelua knitting pattern:

Norsk: Rullelua er chunky leken lue som kombinerer et enkelt uttrykk med moderne detaljer. Lua strikkes fra toppen og ned med økninger som skaper en jevn passform. Den avsluttes med en rullekant, som bidrar til det lekne preget <3

English: Rullelua is a chunky, playful hat that combines a simple design with modern details. The hat is knitted from the top down with increases that create a smooth fit. It is finished with a rolled edge, adding to its playful look.
Head circumference: approximately 50-56 (56-62) cm

(In the picture, the smallest size is used, for a head circumference of 54 cm.)

Recommended needles: Circular needles 15 mm (60/80 cm)

Gauge: 6 stitches = 10 cm in stockinette stitch

If the gauge doesn’t match, you need to change needles. If your knitting is tighter, use thicker needles. If your knitting is looser, use thinner needles.

Yarn suggestions: 200 g (for both sizes) of Vams from Rauma yarn,
Fritidsgarn from Sandnes yarn, or Hobbygarn from Viking yarn
(Knitted with 4 strands)

Alternatively, other yarns with a matching gauge. Remember that the amount of yarn may vary depending on the yardage.