Smartwool Men's PhD Outdoor Medium Crew Socks (Navy) X-Large

New features include improved fit (this model introduces the 4 Degree Elite Fit System which uses a elastic network to guarantee greater stretch and recovery) to comfortably keep your sock in place all day. The Medium Cushion Outdoor Crew sock from Smartwool is made with more durable flat-knit toe seams for improved longevity, and mesh vent zones to guarantee a cool, dry experience. Smartwool's PhD Outdoor Medium Full Cushion Crew sock is perfect for trail running, mountain biking and hikes. Designed to manage moisture, regulate temperature, control foot odor and prevent blisters so that you can focus on the trail ahead.