The moon. As the only natural satellite to our precious earth, It's always there hovering even when the grey clouds are covering our sight. The grey reflects the rocky colors ground of the moon. Holding them in your hand you'll see all the small details of the surrounding stars and planets.. - Heavy Weight- Hypo Allergenic / Anti Microbial- 50% Alpaca / 40% Acrylic / 8% Nylon / 2% Spandex- Ethically Crafted- Made In Peru CARE INSTRUCTIONS - Hand or machine wash in cold water hang or lay socks flat to dry. CAN BE WORN MULTIPLE TIMES BEFORE WASHING. HANG TO AIR OUT BETWEEN WEARS.