COTSWOLD BOLTS-Cloud Cover Stitch. Fuse Cloud Cover Stitch over the back of a finished design to cover scratchy stitches on the backside of embroidery designs. It can also be used on silks and satins to aid in unraveling and shredding while sewing. Please note: this is not a fabric stabilizer. This package contains one 25 yard bolt of 20 inch wide 100% polyester knit fusible fabric. Available in black or white: each sold separately. Imported.