From the AT to the Pacific Crest Trail, our "1466" Hiker raised the bar on what the ultimate hiking sock needs to deliver. Each year we hear from countless thru-hikers that this rugged sock is the only option that truly takes on the rigors of the trail. Discover the trail legend for yourself. Specify Men's Size: M (8-9.5), L (10-12), XL (12.5-14.5).