This Smartwool is a classic low cut sock that is great for walking, running, and relaxing. The merino wool is wicks away moisture to keep your feet cool when it needs to be. This model includes a firm band around the arch for extra support. Smartwool's PhD sock line is their longest wearing, built with IndestructaWool technology.

It also offers a softer weave over the top of the foot so the sock doesn't feel too tight. There is cushion under the ball of the foot, and the sock is designed to be loose in the toe area for added comfort. The heel tab around the back keeps this sock staying right where it needs to.

Medium: Women's 7-9.5

Large: Women's 10-12.5