DescriptionThese Socks made of cotton which and comfortable.And Its Anti-slip dots socks designwhich can the efficiency in yoga, pilates, karate, etc.Spontaneous heat effect is to activate the vitality of cells in the body and local blood circulation, to make the body itself warm, is a kind of heat from the inside out, rather than by external heat to bake the skin surface, so it is not hot itself.Features-Color: black, white, red -Material:Cotton -Size:28.00X9.50X0.10cm/11.00X3.73X0.04in - Tourmaline infused to help improve blood circulation and micro-circulation within the foot. - The strategically placed tourmaline reflects heat back into the foot to ease pain. - Tourmaline attracts moisture to help reduce sweat by taking it away from the foot. - Perfect for those who suffer from cold feet, promote and improve local and systemic blood circulation. - Anti-inflammatory, detumescence role, anti-slip dots socks can the efficiency in yoga, pilates, karate, etc.