Looking for Answers about Under Armour Heatgear 3 Crew Sock 2-Pack - Men's?

The Under Armour HeatGear 3 Sock features Signature Moisture Transport that wicks moisture and accelerates evaporation. Strategic Cushioning built into the sock provides maximum shock absorption and protection. Arch support helps reduce foot fatigue and bolsters circulation. True Seamless Toe offers ultimate comfort. Contoured "Y" Heel gives comfort and perfect fit. ArmourBlock® technology neutralizes the microbes that cause odor before there is any odor at all, which results in moisture transport with maximum scent suppression. Flex Zones bend with foot movement and conforms to the foot. 90% polyester/8% nylon/2% spandex. Imported. Sizing: M - fits men's shoe size 4-8.5, women's shoe size 7-10.5, youth shoe size 10.5-13.5. L - fits men's shoe size 9-12.5, women's shoe size 11-13.