Product details - FOR: Your workday commute and weekend travels, from meetings to meetups - FEEL: Elite performance fabric uniquely designed to wick away sweat in every stride - FAVE: On-the-daily staples, leveled up with peak-performance fabric - Ribbing provides extra comfort - Product #749107 Size & fit - S/M: 7.5 – 8.5 - M/L: 8.5 – 9.5 Fabric & care - 78% Cotton/19% Nylon/3% Spandex - ORGANIC COTTON: Organic cotton is grown from non-genetically modified plants and doesn’t use any synthetic agricultural chemicals such as fertilizers or pesticides - BREATHABLE: Airflow moves easily through the garment - Machine wash cold and tumble dry on low. - Imported.