WIIVVStay active all day long with Wiivv Custom Fit 3D Printed Insoles. Wiivvs are designed to relieve plantar fasciitis pain, joint discomfort, and general foot fatigue.Wiivv designs and creates individually customized products using proprietary 3D-mapping and advanced computer vision technology that is accessible to everyone from their smartphone. Our products are made in the United States using a combination of 3D printing and traditional manufacturing methods. Our company's bionic vision begins with from the ground up, creating a better foundation for every step you take with our Wiivv Custom Fit Insoles and Wiivv Custom Fit Sandals. Everything we ship is rigorously tested, scientifically validated and comes with our 30-Day Happiness Guarantee.