From Androscoggin County, Maine, these sheepskin slippers are reputed to be the warmest available. Unlike other slippers, the natural fleece lining is left intact during tanning and sewing to provide unsurpassed warmth and durability. Their inner sole is Thinsulate to provide twice the warmth of other materials, and the outer sole is made of 3/8-inch thick polyurethane for insulation and support, then covered with cowhide. All stitching is double locked. After wearing, the shearling lining compresses to conform to the shape and size of the foot. Please specify Womens size XSmall, Small, Medium,or Large. (12 oz.)