Schmetz Costume Pack includes universal, stretch, jeans, microtex, and topstitch needles ranging in sizes from 75/11 to 100/16. Use the stretch needles when sewing knits and stretch fabrics like spandex, lycra, elastic, and dance/swimwear fabric. Add decorative stitches to your costumes by using the topstitch needle, and if you are sewing dense materials such as vinyl, synthetic leather/suede, or microfiber, then the microtex needle is your best option. The denim needle can be used on canvas, denim, and twill; while the universal needle is excellent for woven fabrics, cotton, poly/cotton, linens, nylon, and polyester. Costume Pack Sewing Machine Needles, sold in sets of 10, from Schmetz. Needle Type and Sizes: Universal 80/12 (2), 90/14; Stretch 75/11, 90/14; Jeans 90/14, 100/16; Microtex 70/10, 80/12; Topstitch 90/14.