The socks are made of a mixture of Merino wool and synthetic fibers and is suitable for everyday wear. Merino wool is naturally antibacterial, minimizes odor, it is breathable and very pleasant. Synthetic fibers guarantee that the socks retain their shape and wear resistance. The OEKO-TEX® Standard 100 label means that the product (and its components) are tested for the presence of harmful substances and found to be harmless to the human ecology.