Silk Dupioni Fat Quarter (18" X 22"). A slubby, textured silk suiting fabric that has vibrant colors that can make spectacular accents on garments or quilts. Often the weft and warp are woven from different colors to give a wonderful iridescent quality. Weft = Dark Royal Mulberry Raw Silk. Warp = Black Dupion. 95 - 100 grams. Thai Silk Dupioni Fabric. 100% Silk. 18" X 22". Dry clean. Priced per piece Silk is a natural fibre. The weaving of the fabric may therefore contain minor variations and irregularities that are characteristic of a fine silk yarn and should in no way be treated as defects. Colors may vary due to different dye lots.