Regia Premium Merino Yak is an exquisite high quality blend of South African Merino and undyed Yak fibres, with nylon for extra strength, that has a special melange effect. Specially selected fine fibres create a soft and lightweight yarn that is warming and comfortable to wear, with excellent stitch definition - perfect for colorwork. Fiber content: 58% Merino Wool, 28% Polyamide, 14% Yak. Ball length:400m (437yds) per 100 ball. Recommended needle size: 2.50mm (UK 12 / US 1-2). Gauge: 30 sts x 42 rows in 10cm (4in).