Im not sure if they are designed for flat feet, but as a person with a normal arch, they felt very uncomfortable. Excellent adjustable sliders so they fit better I recently purchased this model and absolutely LOVE it! But I extremely happy with my new headphones. Easy to slip on sandals that had nice arch support for day to day casual use. Jadore ce savon. The corner of one door chipped off simply from handling it. When we tried to reposition a few of them soon after we placed them, they tore off the surface of the wallboard, see photo attached. I bought many different brands to try and this type of material I find is the most breathable. by using their PC computer.