Fiber Content:50% Superwash Wool, 25% SOYSILK brand fiber, 22.5% Cotton, 2.5% Chitin (made from Shrimp and Crab shells!)Put Up: 100g/425 m ball (more than enough for an average pair of socks)Gauge: 8 sts = 1" US 2 (2.75mm)Recommended Care Instructions: Machine Wash and Dry