Memory Foam Layer: The advanced memory foam adapts to the unique shape of your foot, providing personalized cushioning and support with each step. Dura-HD Base: A durable base layer adds structural support and longevity to the insole, enhancing overall foot stability. Polyester Top Cover: The top layer is made of attractive and comfortable polyester, contributing to a softer feel and additional comfort. Self-Forming Design: The insole molds to your foot’s shape, offering a customized fit that improves with wear.