The model is knitted in the round with one solid yarn and one multicolored yarn, but can be knit with two solid yarns also. The purple/blue is model 1 and the grey/blue is model 2. In this pattern you will also find complete charts of the hat for model 1 and 2, if you prefer to follow such a description.

Model 1 has decreases at the same time as you work stranded color work. If you are a beginner with color work, I recommend you to knit model 2 because model 1 with decreases and color work at the same time is harder to get right.

Materials:
 Fingering/4ply (14 wpi)
Model 1:
 Main color: 34 grams/121 meters/132 yards.
 Contrasting color: 34 grams/121 meters/132 yards
Model 2:
 Main color: 45 grams/158 meters/173 yards.
 Contrasting color: 15 grams/53 meters/58 yards.

Tools:
 Circular 2.5 mm/ (US 1 or 2), 40 cm (16”).
 5 DPNs 2.5 mm/ (US 1 or 2).
 1 stitch marker.

Difficulty: Intermediate

Techniques: Knit, purl, Latvian braid, decrease, color work with two colors.

This pattern has photo tutorial for the Latvian Braid.
You can find video tutorial here: Latvian Braid