Familiar with the classic SmartWool® Mountaineering sock? Say hello to the stronger, more durable, more comfortable PhD® Mountaineer. ReliaWool™ technology for improved durability in the high wear areas and the 4 Degree™ elite fit system, to keep the sock in place and give you all-sport versatility.
- Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management
- Flat knit durable toe seam
- Heavy cushion heel and toe for maximum comfort and protection in the highest impact areas of the sock
- Flat knit foot and leg with heavy duty yarns for maximum comfort and protection in low volume mountaineering boots