This is a medium bulky weight hat designed to cover most or all of the ears.  It's made from several different wools.  The brown is undyed Romney.  The grayer, lighter brown is Merino wool. The variegated olive/green is dyed, unprocessed Romney.  The bright green and olive green are both Corriedale wool.  The blue is a blend of Merino and silk.  The very thin dark green accent stripes are a hand painted blend of several wools in various greens and navy.  This one was made for all the folks who love "earth colors."