Trail running can be a real challenge for your feet, as the weather and terrain can vary throughout each run.As a result, you need a sock that not only keeps your feet comfortable but also protected.We´ve specifically selected a Merino wool blend that makes the socks super soft and helps reduce friction on the skin without making it too thick for running.Known for its moisture-wicking properties, merino wool yarn will help wick sweat away from the skin to help keep feet cool and dry.The added bonus is that it will also dry faster after washing.The natural antibacterial qualities of merino wool help keep feet cool at extreme distances.As the terrain varies, the padding in our socks provides the necessary comfort and protection for your toes and balls.We´ve even extended the padding to the heel to protect the Achilles tendon area as well, a familiar spot for many runners! Ventilation zones on the top of the foot allow airflow and allow the foot to breathe.This can help keep your feet cooler longer.The completely flat seam prevents sock irritation along the top of the toes, protecting you from possible friction caused by bulky seams.