Flat foot runners often need more support and extra durability in the toe and heel areas of their feet; so, they must also wear running shoes with extra support and durability in these areas as well. Running shoes for flat feet tend to be thicker and bulkier than normal running shoes simply due to these added features. This may make them more clumsy to run in and more prone to injury. If you suffer from flat feet, you know how difficult it is to keep running in them. In addition, your foot tendons and muscles are more likely to injury.
I have tried on both of my shoes, on a stability shoe and an arch shoe, and found that I had to walk in them for an extended period before I got used to them. I didn't mind at first, but after two weeks of this, I began to feel pain when I walked. In addition, my arch began to point downward more as the months went on. My doctor prescribed alexine for pain, and then ran some tests to see if the prescription would actually help me. He found that the level of pain was controlling my body's alignment slightly better.
I have a tendency to overpronate (my feet roll inward toward my body in my gait). Overpronating puts pressure on the outer edges of the feet, and can cause a forward bent (also known as a hyperextension) of the lower foot. He found that I didn't overpronate, and only slightly underpronated (but my feet still rolled inward). He prescribed the same stability shoe he suggested; the only difference was that his suggested insoles and straps were wider than usual. The other difference was that the straps on the inner edge of the shoe were made of soft leather, rather than leather.
I started wearing these shoes about three weeks ago, and have been enjoying them ever since. They have put my arch back in line, and I haven't noticed one bad foot stroke all week. My gait is much better, too. Before, I would involuntarily rotate my feet every time I took a step. Since I now wear the stability shoes, I do not rotate my feet, and my gait is much smoother.
Over the past few years, I have had several medical conditions including corns and calluses, and sore joints in my knees and ankles. It wasn't until recently that I learned that I had overpronated my foot for most of my life, and that I was able to reverse it with the stability shoes. This information may help prevent other conditions from developing.
One reason that you want a good fit is because your feet need good cushioning. If the cushions are too large or too small, your gait will be off. You also don't want to get a shoe with too much or too little cushioning. I found that I normally could find a comfortable and slightly loose fit in my Asics, but that the Cushioned Soft Feet Plus version from Reebok is the best. These shoes are much more cushioned than the Asics, and the Asics don't really cushion nearly as well.
The Asics and Mephisto are similar in many ways. They both have a midsole that is made of high quality material, the exact same type of material that they use in running shoes. And both have a soft midsole, which provides additional shock absorption. What makes these shoes different, however, is that the Asics have an energy return gel in the innermost layer of the uppers, while the Mizuno Wave Inspires don't. The Energy Return gel can reduce impact, but the Asics and Mephisto have no gel in the uppers at all, which means that they are much more shock absorbent.
Another thing that these two pairs have in common is that they both have a mesh and semi-spongy outsole. The Asics Cloudflip and Cloudflyer running shoes both have what's called a clouded toe, which is where the toes curve inward, but they still move inward when you run. This helps reduce pressure on the lower joints. The Wave Inspires, on the other hand, have a semi-spongy insole. This makes them great for people who like a little more grip on their feet, but want some more spring back in their step when their feet hit the ground.