From Etsy:

85% Superwash Extrafine Merino 15% Nylon Yarn (19.5 Microns) 437 yards per 100 grams Yarn Weight: 4ply Fingering

Suggested Needle/Hook Sizes and Gauge: Needle Size: 2.5 - 4mm (US 1.5 - 6) needle and C-G Hook Gauge (stocking stitch): 28sts x 36 rows over 10cm/4 inches on 3.25mm (US 3) needles

Care Instructions: Machine washable on a wool program ideally using a wool detergent in COLD water. Dry flat, do not sun dry or tumble dry. Avoid wringing and twisting.

The extra fine merino wool makes this yarn luxuriously soft and bouncy for next to skin comfort. A little nylon is added for extra durability.

The main factor determining the quality of merino wool is its softness which depends upon the fineness of the fibers. Extra fine merino (19.5 microns) is used which is some of the finest commercially available. This results in a super soft yarn that feels gentle against the skin. This yarn is so versatile and can be used for any next to skin project (scarves, sweaters, etc) as well as items where a little more durability is required such as socks and gloves. The yarn is perfect for socks but can equally be knitted into scarves, shawls or even baby garments which will feel soft next to the skin due to the fine micron merino used.