Checking the flattening of shoes will help a person know about pronation and supination. If your feet bend outside while walking, you are more like to have a supinated foot. Whereas if the feet bend inside, it is the case of pronation. An easy way to remember the difference between pronation and supination is that supination has the term “up” in it. Supination can be identified in the people with rigid arches. It doesn’t get flatten when feet touch the ground. It makes them prone to injuries such as ankle injury, Iliotibial band syndrome, achilles tendonitis and plantar fasciitis. These injuries can be corrected by wearing well cushioned and flexible shoes.