This is the Snappy Hat, a free pattern from Picnic Knits. I had a skein of Brown Sheep Lamb's Pride Bulky to use up as part of my A-Z stashdown which paired with this pattern perfectly.
The yarn contains 15% mohair, which is warmer than wool. Cables gather the fabric and create more bulk, making a warmer hat. Plus, I made the bottom band twice as long as the pattern called for in order for the wearer to fold the brim over, keeping the ears super toasty. This might be the Perfect Storm of Warm Hats.
It's a unisex pattern, but the brown yarn makes this more XY.
Naturally, this is part of my self-imposed A-Z stashdown.
The Snappy Hat by Corrina Ferguson (picnicknits). I used almost a full skein of Brown Sheep Lamb's Pride Bulky (125 yards) in Sable. I used US size 10 needles. The only mod I made was to make the bottom ribbing twice as long as the pattern called for (I knit for 20 rows). I was able to finish this in just a few nights of casual knitting.