Are your feet high-arched?
By either examining your foot or using the footprint test, determine if you have a high arch. If you know you have a flat foot, then you can skip this step.
If you have a high arch, your footprint will curve decidedly inward, making the middle of your foot look very skinny. If you are just examining your foot instead of your footprint, you will notice a high and definite arch on your foot. If you push your hand against the bottom of your foot, your foot will not succumb to the pressure easily; the arch will probably remain rigid and may never touch your hand at all.
If this is the case, you may supinate. Supination, or underpronating, is when your feet roll outwards as you run. This is the least common of the three types. You need to look for flexible shoes with a soft midsole to act as shock absorbers for your body. Look for the keywords "flexible" or "cushioned" when shopping for running shoes.
