Forget wearing thick, uncomfortable ski socks. Instead, slip your feet into the divine comfort of the SmartWool PhD Ski Ultra Light Pattern Sock next time you seek out powder laps and perfect corduroy groomers. The PhD Ultra Light Pattern Sock places ultra-light cushioning where it's needed most, eliminating the bulk and scratchy irritation of heavier wool socks. Strategic mesh venting keeps your feet from overheating throughout the day, and the virtually seamless toe won't scratch or irritate, especially when you're wearing high-performance boots. To ensure a secure, foot-conforming fit, the 4 Degree Elite Fit System combines two different elastics for greater stretch and recovery.