Knit yourself a nice and warm har, or knit it as a gift.
Super cozy and comfortable.
This is a Pattern for a beautiful Fair Isle hat worked in 3 sizes

The pattern is written in US terms and metric and includes a tabel which showes the fair isle patern which is used. Its easy to understand but intermediate knitting,
What skills are you going to need and what will you get

knitting with 2 threads, 2 colors.
knitting with double pointed needles in a circle
Size information

S approx 44 cm diameter and approx 21 cm high. (very elastic)
M approx 48 cm diameter and approx 23 cm high (very elastic)
L approx 50 cm ddiameter and approx 25 cm high (very elastic)
What material will you need

approx 70 gr color A yarn and approx 40g color B yarn.
Chunky yarn
or Dk if taken twice
5x double pointed needles size 5