This hat uses mosaic knitting techniques to create the grid like pattern.
If you haven’t used mosaic knitting before it is the easiest way to add colorwork into a pattern - you never have to carry two colors at once.

In this pattern you will only ever knit the primary color (black in the photos) while the other colors are a combination of knit/purl/slip stitches. It is a relatively quick knit and the pattern is quite simple - perfect for TV based knitting.

This pattern will fit an average adult head (22.5”) but can easily be adjusted larger or smaller because the pattern repeats every 2 stitches.

You’ll want about 150y of the main color and 25y of each of the four other colors. Also, my knitting is usually looser than most people - make sure you test your gauge before starting. I knit this hat using US5s, but my test knitters used between US7-9 to match my size.