The Training Uncommon Solids Crew features a network of mesh vents that wrap from the top of the foot to the arch to further enhance breathability while air channel cushioning uses an articulated foot bed to increase padding and airflow. 200 needle count stitching is paired with a reinforced heel and toe for a clean appearance and plenty of durability. For an unrivaled fit and exceptional support, this training sock features anatomically correct designs for the left and right foot. FEATURES- -80/20 Moisture Wicking Fibers -Advanced Moisture Management -Breathable Performance Mesh -Anatomical Cushioning -Seamless Toe Closure -FEEL360(TM) Technology PRODUCT CARE- -Machine Wash in 40 C / 104 F. -Avoid Bleaching or Ironing the socks. -Socks will last longer if you keep them out of the dryer.