you're wearing some of the best performing socks on the mountain. They're thicker at the shin to provide additional cushion inside ski boots, and thicker sections at the toe and heel provide additional warmth and cushion as you move in your boots. Thinner sections at the top of the foot allow for better ventilation while allowing your boots to get a better hold. And that comfort will stay with you because the merino wool construction works with your body to regulate body temperature while design keeps that comfort for years to come.