The Under Armour HeatGear® Trainer Lo Cut Socks feature ArmourBlock® technology to neutralize the microbes that cause odor. The embedded arch support reduces foot fatigue and the signature Moisture Transport System wicks away sweat from the body. A seamless toe and contoured ?Y? heel gives a perfect, comfortable fit. ArmourFit® elevated support gives a more secure fit. These socks have strategic cushioning built into the sock for maximum shock performance and the flex zones bend to conform to your foot?s movement.