The Flex sock offers improved flexibility and stretch along its entire length, with a new ribbed cuff. No more pulling up your socks with these little gems. These socks were designed to attract attention without being inconspicuous. However, everyone knows that your socks should match your underwear. That's the foundation of fashion. Targeted ventilation Seamless toe closure Compressive arch support Composition: 50% Polyester / 30% Cotton / 15% Acrylic / 5% Spandex One size fits all - Suitable for men's shoe sizes 9-12 *Delivery times for Saxx products may vary between 5 and 10 working days.