SmartWool Fit System
The original SmartWool Fit System provides a great fit with two supportive bands around the arch and ankle of the sock.
WOW (Wool on Wool) Technology provides high-density cushioning under heel and forefoot that protects against shock and abrasion; lower-density cushioning under arch and around Achilles reduces weight without sacrificing fit or support.
SmartWool's fibers offer the most efficient moisture-moving system on the market. Transports water while it's still in the vapor stage, before it condenses(keeps you drier longer).
Works with your body's heating and cooling system, keeping you cool in the summer and warm in the winter. Suitable for a wide range of conditions.
Dryness means an enviroment that is inhospitable to odor-causing bacteria. More wearing, less washing.