Vital Salveo-Thin Athletic Socks, Bike, Sport Made by Bamboo Charcoal yarn or Germanium yarn with high-density weaving technique for extreme softness and comfort, have wicking, deodorize characteristic. Release far infrared and negative ions, effectively eliminate fatigue, soreness, and discomfort to get vital The high moist absorption & heat disperse function to keep your feet dry and cool. Reinforced protection of heel, toe, and plantar enhance shock absorbing and durability in the sport. Eliminate the possibility of rubbing against shoes and sports injury. Y-stitch heel, more smooth and comfortable. Most suitable for games and extreme sport activity