From the Bog Dog team:
The Enduro high-performance socks are engineered with Drynamix™ moisture management technology that keeps feet cool and dry while allowing free airflow for maximum comfort, performance and durability.
Move confidently, as all of Balega's running socks have been meticulously designed for quality performance without compromise. Seamless construction eliminates abrasion across the top of the foot while the extra deep heel pocket ensures that each sock fits the foot perfectly and does not slide down during a run. V-Tech Arch Support System adds structure along the arch of your foot for added support and a performance hit. This medium cushioning sock provides full-footbed comfort and impact resistance to help reduce foot fatigue.