Opal Uni is a beautiful yarn in bright solid colors, perfect for making wonderfully warm socks, sweaters and much more. It is also wonderful as a contrasting colour for heels and toes, or just to mix & match with other hues to create your own unique color palette. This soft and durable 4-ply yarn is made from 75% virgin wool (superwash) and 25% polyamide. Each ball weighs 100g and holds 425 metres of yarn. Washable up to 40°C. Recommended needle size is 2.50mm.