What Flat Feet Actually Need in a Running Shoe
Flat feet — medically termed pes planus — means the arch of the foot makes full or near-full contact with the ground. This typically causes the foot to overpronate (roll inward excessively) during the gait cycle, placing elevated stress on the ankles, shins, knees, and hips.
Running shoes for flat feet should provide three things: motion control or stability (to limit overpronation), adequate medial support (firmer foam on the inner side of the midsole), and sufficient cushioning to absorb impact forces that the arch would normally help distribute. Neutral shoes — designed for normal to high arches — are generally unsuitable for flat-footed runners and increase injury risk.
"The most common mistake flat-footed runners make is buying neutral shoes because they look or feel good in the store. Within three months, shin splints and knee pain follow. The right support structure prevents those problems from the first run." — Lisa Park, CPT
Key Features Comparison
| Shoe | Stability type | Cushioning | Width options | Best distance |
|---|---|---|---|---|
| ASICS Gel-Kayano 31 | Medial post | Medium-firm | Standard, Wide | Long runs |
| Brooks Adrenaline GTS 24 | GuideRails | Medium-soft | Standard, Wide | All distances |
| New Balance 860v14 | Medial post | Soft | Standard, Wide, Extra wide | Easy/medium |
| Saucony Guide 17 | Medial post | Medium | Standard, Wide | Speed training |
| Hoka Arahi 7 | J-Frame | Maximum | Standard, Wide | Recovery runs |
Do You Need Orthotics Too?
A well-fitted stability running shoe addresses the mechanical challenges of flat feet for most recreational runners. However, if you experience persistent knee pain, shin splints, or Achilles tendon issues despite running in appropriate stability shoes, custom or semi-custom orthotics may provide additional benefit.
Seek assessment from a sports physiotherapist or podiatrist rather than purchasing generic off-the-shelf insoles — generic insoles often provide inadequate support for the specific pronation pattern of an individual foot. See our beginner running guide for more on injury prevention.
For most flat-footed runners, the ASICS Gel-Kayano 31 provides the best combination of stability, durability, and long-distance comfort. Beginners will find the Brooks Adrenaline GTS 24 more approachable. If width is a concern, the New Balance 860v14 is the clear choice. All three have earned their place in a flat-footed runner's kit bag.