A light & lofty blend of natural fibers with nylon for structure and softness. It has generous yardage - a few balls go a long way. Weight Aran (8 wpi). Yardage: 179 yards(164 meters). Unit weight: 50 grams (1.76 ounces). Gauge: 4.0 sts = 1 inch. Needle size: US 9 - 5.5 mm. Fibers: 32% Manufactured Fibers - Nylon / Polyamide, 27% Wool, 25% Camelid - Alpaca, 16% Other Animal - Yak