Dark gray metallic ribbed socks, medium by Zara. COMPOSITION OUTER SHELL 81% polyester 8% cotton 8% viscose 2% elastane 1% metallised fibre Which has at least: OUTER SHELL 81% RCS-certified recycled polyester 8% OCS certified organically grown cotton CERTIFIED MATERIALS RCS CERTIFIED RECYCLED POLYESTER Nowadays, recycled polyester is mainly made from PET plastic waste. This is a type of plastic that is widely used in a variety of items, such as plastic bottles. Using recycled materials helps limit the production of virgin polyester fiber. Caring for your clothes is caring for the environment. Wash your garments only when needed, as sometimes freshening them up is sufficient. Wash cycles slowly wear down fabrics. By reducing the amount of washing, we lengthen the life our garments and reduce water and energy consumption in their care. Clothing care guide Hand wash max 30°C/86°F Do not use bleach / whitener Do not iron Do not dry clean Do not tumble dry Retail $19