The Smart Arch, Custom Molding Orthotics, are designed to stabilize your heel and absorb shock. This insert is a light, adjustable memory foam that relieves foot pain and fatigue. The firm bottom layer acts as a shock absorber while the top layer molds to the shape of your foot, providing cushioning comfort as you walk. NWT P.S. I have a second pair as well. Although they are not in a box, I don't think they've ever been worn. These are not marked men's or women's on the bottom, however in putting them next to each other, they appear to be the same size. The price reflects two pair.