A heavenly ball of wool! Lang Alpaca Soxx 4-ply is made up of 70% superfine alpaca and 30% durable nylon. Also, the production process for this yarn is very eco-friendly; by using Easywash, it is machine washable in cool or warm water. Easywash is an enzyme treatment for alpaca fibres, which completely dispenses with any need for environmentally harmful chemicals. Easywash is certified by Ökotex, Bluesign and Reach.