SHEEPSKIN INSOLE w/ memory foam for comfort, sz 7, 37 female, never used Genuine sheepskin insole with memory foam midsole for comfort. Texon(*) board for extra isolation from cold hard floors and for an easier push inside an old pair of slipper or winter boots as a replacement. Great for Ski, Rubber or Gum Boots for added comfort and warmth. It is also a good way to tighten up your boots that have stretched out a bit