Heritage Wave is a super-soft yet durable yarn that is machine washable and dryable because of its blend of superwash merino wool and nylon. This yarn is great for one skein projects, such as socks, mitts and other fun accessories.75% Superwash Merino Wool / 25% NylonWeight: 100 g / 3.5 ozNeedle Size/Tension: 2.25-3.25mm | 28-32 stitchesSuggested Care: Machine Wash Cold. Tumble Dry Cool.