Staring at a wall of running shoes and unsure where to start? Here is how to choose running shoes: get a snug fit with room for your toes, match support to your gait, then pick cushioning and tread for where you run.
If you are comparing several kinds of shoes, our footwear buying guide puts this advice in wider context.
| Item | Value |
|---|---|
| Toe room in the shoe (Cleveland Clinic) | A thumb’s width between your longest toe and the front of the shoe |
| Typical running shoe life (Cleveland Clinic) | 300 to 500 miles |
| Replacement estimate (AAPSM) | 350 to 550 miles |
| Weekly mileage increase (Cleveland Clinic) | No more than 10% each week |
| Alternating old and new shoes (Cleveland Clinic) | One to two weeks |
These figures come from Cleveland Clinic’s running shoe guide (dated March 31, 2026) and the American Academy of Podiatric Sports Medicine. Figures can change, so check the source before you rely on them.
Get the fit right first
Fit comes before every other feature. Cleveland Clinic’s guide says the best running shoes should feel comfortable immediately, and it offers these quick checks (source):
- Keep a thumb’s width between your longest toe and the front of the shoe.
- Your heel should feel snug without slipping.
- You should not feel pressure across your midfoot.
A podiatrist quoted by mindbodygreen gives a similar test: pinch the tip of the shoe and look for about half an inch between your longest toe and the edge. The same piece says running shoes should fit snugly, not tightly or loosely (mindbodygreen).
When you try shoes on, a few habits help. Go later in the day when your feet are slightly swollen, and wear the socks you normally run in (Cleveland Clinic). A sports podiatrist writing for the AAPSM adds that you should try on both shoes, jog outside if the store allows it, and keep the shoes on for about 10 minutes to check they stay comfortable (AAPSM).
Width matters as much as length. Cleveland Clinic lists adequate toe box width as a feature to look for, especially if you have bunions or neuromas, and warns that cramped toes can lead to black nails, blisters and nerve irritation. If your toes feel squeezed, read how to find the right shoe width in our guide on how to find the right shoe width.
Not sure of your size to begin with? Our walkthrough on how to measure foot size at home gives you a number to compare against each brand’s size chart.
Gait and arch type: what your foot is telling you
A gait analysis is a simple running test that looks at your running form and how your foot strikes the ground. Cleveland Clinic notes that even an in-store treadmill assessment can give useful clues, and that visiting a specialty running store lets professionals make recommendations (Cleveland Clinic).
The American Podiatric Medical Association groups feet into three broad arch types and suggests a shoe style for each (APMA):
- Low or flat arch: a supportive shoe designed for stability and motion control, which helps correct overpronation.
- Normal arch: a shoe with equal amounts of stability and cushioning to help absorb shock.
- High arch: a cushioned shoe with a softer midsole and more flexibility.
Shoe makers usually sort models into neutral, stability and motion control. Neutral shoes have little midsole rigidity, stability shoes have a firmer midsole for runners whose heels strike at an inward tilt, and motion control shoes are the most supportive (mindbodygreen). Cleveland Clinic adds that some runners benefit from stability features that control excessive inward rolling, while runners with a neutral gait often do best in neutral shoes.
Your old shoes can offer a clue too. The AAPSM author says that if the heel counter tilts in or bulges over the inner side, you may pronate excessively and could look for more stability, while a shoe that tilts outward may point to a high-arched foot that needs good shock absorption (AAPSM). Treat these as starting points, and see a podiatrist if you have pain that does not settle.
How much cushioning and heel drop do you need?
Cleveland Clinic compares cushioning to a shock absorber and says more is not always better: it depends on your stride and goals. In the mindbodygreen piece, a podiatrist explains that the more cushioning in the midsole, the more shock absorption you get (mindbodygreen).
Cleveland Clinic’s podiatrist suggests this rough split (Cleveland Clinic):
- Experienced runners sometimes prefer less cushioning, because a firmer, lower-profile shoe lets them feel the ground.
- Walkers usually benefit from more shock absorption.
- Sprinters often prefer a responsive, lighter and firmer shoe over a heavily cushioned one.
Heel-to-toe drop is the height difference between the heel and the forefoot, usually measured in millimeters. Higher-drop shoes are more comfortable for heel strikers, while lower-drop shoes encourage midfoot and forefoot strikes. Cleveland Clinic warns that switching drop levels abruptly can strain your Achilles tendon or calf, so change gradually (Cleveland Clinic).
Match the shoe to the surface
The outsole should suit where you run. Cleveland Clinic’s podiatrist recommends the following (Cleveland Clinic):
- Road running: a smooth outsole and a lightweight shoe.
- Trail running: aggressive tread and rock plate protection.
- Treadmill running or walking: a neutral road shoe.
Track shoes often have spikes for extra traction when you push off during a race, and wearing the wrong type for your surface can lead to injury and discomfort (mindbodygreen). If you mix surfaces, pick the shoe that matches the surface where you spend most of your miles.
Break in new shoes and know when to replace them
New shoes should not need weeks of painful break-in, but your body may need time to adapt if you switch styles, cushioning levels or heel drops. Cleveland Clinic suggests these steps (Cleveland Clinic):
- Wear the shoes for short walks first.
- Alternate between old and new shoes for one to two weeks.
- Increase your mileage gradually, by no more than 10% each week.
- Watch for new pain in your Achilles, arch or forefoot.
The AAPSM author recommends an easy 3 mile run in a new pair, and only short distances during the first 100 miles. He also says never to wear a brand new shoe in a marathon (AAPSM).
Shoes wear out before they look worn. Cleveland Clinic says most last about 300 to 500 miles, the AAPSM cites estimates of 350 to 550 miles, and mindbodygreen gives 300 to 600 miles (Cleveland Clinic, AAPSM, mindbodygreen). Signs it is time for a new pair include new aches on familiar runs, an uneven outsole and a flattened midsole.
The AAPSM also says that failing to replace worn shoes is a major cause of running injuries. It adds that manufacturers have often made unannounced changes to a model, so a favorite pair may feel different when you reorder (AAPSM).
Frequently asked questions
Should running shoes feel tight or loose?
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Neither. Running shoes should fit snugly but comfortably, and your heel should not slip (mindbodygreen). If you keep adjusting the laces to compensate, the shoe is probably the wrong fit.
Do I need a gait analysis before buying?
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You do not need one to buy a pair, but it helps if you are unsure which support level suits you. Cleveland Clinic recommends one if you are not sure what best supports your feet, and many specialty running stores can do a simple version (Cleveland Clinic).
How often should I replace running shoes?
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Estimates range from about 300 to 600 miles depending on the source, and weight, terrain and running style all play a part (Cleveland Clinic, mindbodygreen). Replace them sooner if you notice new aches, an uneven outsole or a flattened midsole.
Is more cushioning always better?
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No. More midsole cushioning means more shock absorption, but Cleveland Clinic notes that experienced runners sometimes prefer less, and walkers often prefer more (Cleveland Clinic). Choose by stride, goals and comfort.
