Strategic cushion reduces bulk, delivers flexibility and breathability. Features. Dynamic arch support helps reduce foot fatigue. Ergonomic contour technology delivers true left-right anatomical fit. True seamless toe reduces irritation. Precision y-heel pocket improves fit and enhances comfort. Heatgear® fabric wicks sweat away from your skin to keep you cool, dry, and light. Anti-odor technology helps prevent odor in the sock. Material wicks sweat and dries fast.