Smartwool athlete and iconic Alpinist partnered with our sock developers to help develop and test the PhD® Outdoor Mountaineer sock. His attention to detail, years of experience and on-mountain field-testing helped us create our best, most comfortable mountaineering socks ever.


Editors' Choice Snow 2017: Smartwool PhD Outdoor Mountaineer


This sock is the foundation of comfort on long-haul ski tours.

Editors Choice


See the entire PhD® Outdoor Collection