Butterick Paper Sewing Pattern 6455. This pattern features very loose-fitting pullover tops with elastic at the neckline and variations in length and sleeve design. It includes pattern pieces and sewing instructions. Recommended fabrics include Double Georgette, Crepe de Chine, Challis, Charmeuse, Rayons, Cotton Types, and Voile. This pattern is rated as Very Easy and is printed in the U.S.A.