Good quality ready-to-wear garments will often have an invisible zipper fitted. These zippers are often neglected by the home dressmaker which is a pity because the Concealed Zipper foot can ensure success everytime. Invisible zippers are suitable for all fabrics from fine silk jersey through to suit weight wools and tweeds. The key is to get the needle as close the fastener as possible, which this foot accomplishes by slightly unrolling the zipper just before the needle. Once fitted, a well sewn invisible zipper will merely look like part of the seam.