Navia Duo - 219 Purple Navia Duo - 219 Purple Navia Duo - 219 Purple 100% pure wool, 180m/50gr £4.00 Quantity: at £4.00 each Add To Basket 1 in stock. Navia Duo is a beautiful pure wool yarn from the Faroe Islands. It's blended from Faroese wool, Shetland wool and Australian lambswool. It's a 4ply/fingering weight and is perfect for fair isle/stranded colour work and lace patterns. Each ball has 180m per 50gr ball. Colour - 219 Purple Was £5.