Which shoes are best for flat feet. The cross trainers are also made to keep the feet aligned and from pronating, which is also great for people with flat feet. Saucony Redeemer ISO 2 6. Where to buy insoles for flat feet? Its users say they fit like a glove! They are very comfortable, and they look really nice with khakis and similar attire. Happy shopping! You may not be doing it for your health but having to work in an environment where you have to walk on or stand on concrete all day can certainly take a toll on your feet. This helps with circulation and keeping your feet relatively dry.