These socks for diabetics from The Salk Company feature a space age textile oxygen and energy recovery system that helps increase oxygen levels to the skin, aiding in healing and tissue recovery. Holofiber is responsive to the body's own energy and emitted spectrum of light, helping to regulate body temperature and clinically proven to increase blood flow (and oxygen level) by up to 29.9%. Holofiber yarn is soft, comfortable, completely breathable, latex free, antimicrobial and positively permanent for the life of the sock. This is a Special Order item and may take 10-15 business days to deliver.