Most lining fabrics are slippery and smooth, making getting in and out of a garment easy. And some pieces are interlined in warmer fabrics like flannel. With a warm back lining, you get the best of both worlds! A perfect combination of lining and interlining in one fabric. One side is a shiny satin and the other is a brushed cotton for added coziness. Great for coats, jackets, and other fall/winter garments. Also known as kasha satin or Sunback.