Product Review

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.

PhD Built for Performance in the Highest Degree

4 Degreeâ„¢ Elite Fit System Uses two elastics for greater stretch and recovery to keep the sock in place

ReliaWoolâ„¢ Patented ReliaWoolâ„¢ technology in high impact areas provides superior durability

Ultra Light And Heavy Cushion Minimal cushioning in the leg and foot for maximum performance in mountaineering boots combined with Heavy Cushioning in the toe and heel for protection and comfort.

Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.