Foot Soldiers**Engineered for Military Use*** Hot Weather Over the Calf Boot Sock Advantage Moisture Transport-wicks moisture away from your feet. Mesh vents accelerate moisture release to the outside of the sock which aids your feet in staying cool and dry. Arch reinforcement ensures a snug fit while increasing blood circulation throughout the foot and providing additional support and protection in this area. A seamless toe design ensures lasting comfort. AdvantgeShield technology neutralizes odor causing microbes so your socks stay fresher longer. A mixture of Spandex and Nylon threads ensure that these socks stay up and active as long as you do. Trade Agreements Act TAA / GSA Compliant Available in Small, Medium, Large and XL. Call 800-853-8506 for GSA pricing or click the GSA logo to order on GSA Advantage! GSA Contract: 47QSWA22D009S