Wrap your arch in this Neoprene with CoolMax mesh support and experience relief almost immediately. Worn over the sock, the Arch Pro-Tec provides upward compression to the arch, supporting the Plantar Fascia (that fibrous band of tissue that runs along the sole of the foot and attaches to the heel bone and base of the toes) and subsequently alleviates soreness, inflammation and discomfort in the arch and heel region. The easy-adjust Velcro fasteners allow you to control the amount of support you need. Recommended by medical professionals. Washable. Specify men's/women's shoe size.