Red Heart Mixology Yarn-Swirl. Mixology yarns have been designed so that you can enjoy the art of mixing yarn textures. Here are the amazing textured Swirl colors. Each one matches to a Print and coordinates with several Solid shades. All Mixology yarns are the same weight so you can combine them in your own unique way. Weight category: 6. Content: 98% Acrylic/2% Polyester. Putup: 4 oz/113 g, approximately 59 yards/54 meters. Gauge: Knit-8s x 11r = 4in/10cm on size US15/10mm needles. Crochet-7sc x 8r = 4in/10cm on size N15/10mm hook. Dyelotted: we try but are not always able to match dyelots. Care: machine was, tumble dry, do not bleach, do not iron, dry clean with P solvents only. Made in the USA.