These Superfeet Premium Green - Wide Fit insoles keep their shape and deliver reliable support and comfort. Deep heel cup provides extra cushioning and support for repetitive impact. Wide Forefoot designed for sizes 3E through to 6E. Superfeet shape is contoured to provide added support for wider feet and helps reduce strain. High-density foam has a closed-cell construction that is designed to last. Designed to eliminate odor-causing bacteria to keep your feet feeling fresh. Stabilizer cap in back provides extra support for the heel and gives additional structure and stability to the foam layer beneath. 100 percent man-made.