Under Armour Hype Pro Lite Ski Sock
Here's what other sites are saying:
Contrary to what you might think, a lightweight ski sock like the Under Armour Hype Pro Lite Ski Sock will actually keep your warmer than a bulky one will. That's because when your feet aren't crowded, your blood can circulate better for greater overall warmth.
- Backcountry.com refers to the men's version