Basic two-colour Fair Isle requires no new techniques beyond basic stocking stitch. At each stitch, there are two available “active” colours of yarn; one is drawn through to make the stitch, and the other is simply held behind the piece, carried as a loose strand of yarn behind the just-made stitch.
I’ve written the pattern to include 2 methods of knitting. The first method is the traditional Fair Isle method (Knit in the round on 4 double pointed knitting needles. Seamless) The second method is worked flat and knit using 2 needles, with a back seam.
The pattern is a lot easier than it looks.

The pattern takes very little yarn. I’ve stated 50grams of each of the 2 colours used in the pattern instructions.
The pattern is written with a chart for the fair isle stripes of colour.
Now I just need a Ski slope:)