This is a bulky weight hat that fully covers the ears.  The black is dyed Corriedale wool.  The fuzzy looking variegated gray is a blend of black Merino wool and white malamute hair.  The blue is Corriedale wool.  The medium gray is a blend of undyed Corriedale wool and opossum down.  The very light gray is a blend of undyed Romney and Perendale wool, and the dark brown is undyed Romney wool.