RED HEART-Boutique Trio Yarn. Trio is a unique ruffle yarn that you can stitch three ways for three different looks. Trio has three layers; each a different colors. You choose the one you stitch into; and the other layers will show more prominently. The neon shades have two layers of black and one layer of color so you get just the right kick of neon color. Weight category: 6. Content: 100% acrylic. Putup: 3.5oz/100g; 22yd/20m on size US9/5.5mm knitting needles. Dyelotted: we try but are not always able to match dyelots. Care: hand wash cold; lay flat to dry; do not iron; do not bleach; can be dry cleaned using solvent P. Imported.