When buying Emus spend the extra money and order from their "premium" sheepskin line (Stinger or Outback). "Premium" means that it is a true twin-faced shearling with the skin on one side and fleece still attached on the other, as sheepskin should be. These are 'lined' with merino wool, which is plenty warm, but not nearly as durable. The lining sheds and comes out in clumps then later flattens out in a way that twin-faced does not. If you just want to look good and have warm feet these are fine, but if you want a boot that lasts go premium or buy Uggs or Brumby's.