●Patented PropelCore™ soles ●Shock-absorbing pad ●Anti-pronation heel ring ●Wide toe box and High instep ●Moveable insoles with Arch support The Rebound Core is designed especially for wide foot people and people suffering from foot issues like Plantar Fasciitis and hammertoes. With its wide toe box and high instep design, FitVille Rebound Core reduces the friction between your feet and the shoe to the minimum. The patented dual-density soles bring your feet with both arch support and unprecedented cushioning comfort.