I've mentioned before that each hat series has a distinct design structure. But what you may not have noticed is that each series also follows a particular gauge structure. From highest to lowest it goes Reflect (diamond shapes in high gauge), Shear (parallelograms in medium gauge), and Divide (crosses in low gauge).
Shear Echo Two follows the same design structure of the Shear Series, but mixes things up by utilizing the lower gauge of Divide. It's a mash-up. In terms of design structure, it's nearly identical to Echo One, but with a thicker yarn, and a slightly simplified sequence of angular transitions.
The yarn is a 100% wool tweed. It's the lighter, sandy colored one in the image, and comprised the yoke section of the original sweater from which it was recycled. I honestly didn't know for certain whether I'd have enough of it for a hat which is why I simplified--and consequently reduced the number of rows of--the design. So I guess it all worked out in the end.
Oh, and I have a mustache now, in case you haven't noticed.