Under Armour Mens UA Run Launch No Show Nylon^Spandex Launch into the next mile or two with seamless effort from the Under Armour&reg; Run Launch No Show sock! Sold as one-pair pack. No-show for an invisible wear in shoe. Ultra-light sock built for running. Moisture Transport System wicks away moisture. ArmourBlock&reg; prevents odor. Seamless toe for a shafe-free performance. Strategic ventilation areas in high-wear zones. Anatomical call-out for left and right foot. Tab on front and back for easy on and off wear. 94% nylon, 6% spandex. Machine wash warm. Imported.