the heavier, stiffer footwear usually associated with extended alpine excursions. The SmartWool fibers also have a lot to do with the fabulous comfort experienced in the SmartWool Trekking Heavy Crew sock. They have a very small micron diameter, between one-tenth and one-third the size of a human hair, making for a very soft, comfortable feel. And equally important, these same fibers move perspiration moisture at a fast clip, even while still in the vapor stage so the feet stay dry throughout the day.  (less)

play a major role in the comfort experience. These fibers are extremely small, with a diameter much smaller than a human hair. This makes for a very soft sock, a feeling that is very inviting to the feet the moment you slip them on. The SmartWool fibers also move moisture at a phenomenal rate, wicking away perspiration vapor before it has a chance to turn to a liquid. Another important comfort advantage of the SmartWool Hiking Medium Crew sock is the supportive arch brace. This brace feels much like a terry cloth wristband, wrapping around the mid-foot area to hold the sock in place and support the foot.  (less)

play a major role in the comfort experience. These fibers are extremely small, with a diameter much smaller than a human hair. This makes for a very soft sock, a feeling that is very inviting to the feet the moment you slip them on. The SmartWool fibers also move moisture at a phenomenal rate, wicking away perspiration vapor before it has a chance to turn to a liquid. Another important comfort advantage of the SmartWool Hiking Medium Crew sock is the supportive arch brace. This brace feels much like a terry cloth wristband, wrapping around the mid-foot area to hold the sock in place and support the foot.  (less)

comfort, WOW wool on wool Technology for shock and abrasion resistance in high impact zones, and Duroyarn reinforcements for added durability, the PhD ¾ Crew is the ideal sock for hiking, running, Nordic skiing, or any fast forward aerobic activity.  (less)

trail running and provides unbeatable performance and fit.  (less)

micron fibers not only have a very soft feel, they also wick moisture rapidly to maintain a dry environment inside the boot. Other comfort features include a flat-knit toe seam to assure a smooth surface against the toes and a ribbed leg cuff offering excellent horizontal stretch for a more comfortable form fit. The SmartWool Hiking Light Crew sock's dedication to foot comfort is further demonstrated by the inclusion of sole area cushioning and a spandex reinforced arch brace that holds the sock in place and supports the foot.  (less)

hiking, biking, and trail running.  (less)

hiking, biking, and trail running.  (less)

trail running and provides unbeatable performance and fit.  (less)

micron fibers not only have a very soft feel, they also wick moisture rapidly to maintain a dry environment inside the boot. Other comfort features include a flat-knit toe seam to assure a smooth surface against the toes and a ribbed leg cuff offering excellent horizontal stretch for a more comfortable form fit. The SmartWool Hiking Light Crew sock's dedication to foot comfort is further demonstrated by the inclusion of sole area cushioning and a spandex reinforced arch brace that holds the sock in place and supports the foot.  (less)

play a major role in the comfort experience. These fibers are extremely small, with a diameter much smaller than a human hair. This makes for a very soft sock, a feeling that is very inviting to the feet the moment you slip them on. The SmartWool fibers also move moisture at a phenomenal rate, wicking away perspiration vapor before it has a chance to turn to a liquid. Another important comfort advantage of the SmartWool Hiking Medium Crew sock is the supportive arch brace. This brace feels much like a terry cloth wristband, wrapping around the mid-foot area to hold the sock in place and support the foot.  (less)

as you log the miles.  (less)

as you log the miles.  (less)

micron fibers not only have a very soft feel, they also wick moisture rapidly to maintain a dry environment inside the boot. Other comfort features include a flat-knit toe seam to assure a smooth surface against the toes and a ribbed leg cuff offering excellent horizontal stretch for a more comfortable form fit. The SmartWool Hiking Light Crew sock's dedication to foot comfort is further demonstrated by the inclusion of sole area cushioning and a spandex reinforced arch brace that holds the sock in place and supports the foot.  (less)