This is a medium to extra bulky weight hat designed to cover the ears.  The multi-color top section is various colors of Merino wool plyed with undyed beige llama wool.  The double plying adds extra thickness to the yarn.  The orange, gray green lumpy sections are more of the same.  The lime green edge and lumpy section near the top are Corriedale wool.  The gray green lumpy section in the center  and dark orange above it are also Corriedale.  The variegated gray sections are Icelandic wool, which looks a bit like mohair.  A very cute hat that would look particularly good on a redhead, I think.