UA RUSH is infrared technology that reflects your body\'s energy to help you work harder & recover faster|Ultra-thin & light construction for a barely there feel|Material wicks sweat & dries really fast|Embedded arch support reduces foot fatigue|Anti-odor technology helps prevent odor in the sock|Strategic zonal mesh for improved breathability where you need it most|True seamless toe delivers chafe-free performance|Fitted heel contours around your foot for a better fit - Style #: 1365879|Left/Right specific construction|Single pair|Powered by Celliant|Imported