These are actually my second pair of Emu Stinger boots.  I purchased the Chestnut last year and loved them so much, I just got a new pair in black.  Emu makes a great quality product, as good as UGG in my opinion but you are able to find Emu's at a much better price...especially on Amazon.com.  The same boot was $179 at Macy's, I got mine for $76 during the Black Friday Sale.  The Stinger is made of genuine Australian Sheepskin just like the Uggs, but at a fraction of the cost.  Keep in mind, not all Emu's are sheepskin, some have Merino wool lining (The Bronte), so pay close attention to the description of the style you are looking at.

I highly recommend these boots if you are looking for a sheepskin style.  Also, they are pretty true to size.  I usually wear a 7-7 1/2, I ordered both pairs in a 7 and they fit perfectly.