This hat is a sort of cross between a round cap and a tam.  I guess you could call it a slightly slouchy round cap.  The body of the hat is big and roomy and tapers nicely  to a fitted brim around the face.  It fully covers the ears.  It's made from dyed Samoyed hair (chiengora) and has a nice fuzzy halo.  It is exceptionally soft.  It's at least as warm as wool, and perhaps more so.  It looks black in the photo, but actually has some brownish highlights.  A great winter hat!