Taken from Stories In Stitches 3: "This updated version of the WWI helmet liner makes a perfect warm hat for winter travels and outdoor sports. The lace patterning and cashmere yarn add touches of upscale elegance while the added face flap provides extra warmth for those below zero days when you want to cover your mouth and nose."
This pattern is from Stories In Stitches 3, pg 16 - Traveling Hood.
Size US 3 double point needles, US 3 - 16" circular needles (or size needed to obtain gauge), E crochet hook, two buttons, and a tapestry needle are required but not included.