Red Heart Boutique Midnight Yarn. Beautiful shades to create soft elegant cowls scarves and fashion accessories. Weight category: 4. Make up: 67% Acrylic/26% Wool/3% Nylon/4% Polyester Metallic. Put up: 2.5oz/70g 153yd/139.9m. Gauge: Knit: 16st = 4in/10cm on size US10.5/6.5mm. Crochet: Recommended hook size L11/8mm . Dyelotted: We try but are not always able to match dyelots. Care: Machine wash dry flat do not bleach do not iron do not dry clean.