Everyone wears shoes a little differently, so no two pairs wear out the same way. Checking the soles every month or two is a quick way to see when a pair is done, spot a change in a child's shoes early, and notice when one shoe is wearing very differently from the other.
A wear pattern is a clue, not a diagnosis. Research on shoe wear is mixed. In a study of 76 military recruits wearing identical boots, the most common wear was at the outer back of the heel, and the wear angle had only a weak link to how the foot moves (Finestone and colleagues, 2012). Use what you see to decide what to watch, when to replace, and when to ask a podiatrist or your child's doctor. Do not use it to label anyone's feet.
How to check soles in two minutes
- Check both shoes. Turn the pair over side by side in good light. The difference between left and right often says more than either shoe alone.
- Find the smoothest spots. Look for where the tread pattern has faded or the rubber has worn down, then compare with the drawings below.
- Look at the heel from behind. Set the shoes on a table at eye level. A heel counter tilting inward or outward is worth noting (AAPSM).
- Check the midsole. Deep wrinkles in the foam or a flat, hard feel mean the cushioning is wearing out, even if the tread looks fine. The midsole usually wears out before the rubber outsole (AAPSM).
- Look at more than one pair. A pattern that shows up on several pairs, including everyday shoes, means more than one worn-out pair (AAPSM).
- Take a photo from the same angle each time. Photos a few months apart make slow changes easy to see.
Common wear patterns
Drawings show a right shoe seen from the bottom, toe at the top. Shaded areas are where the wear is.
Even wear
Wear spread across the heel and the ball of the foot, a little more at the outer back of the heel. For people who land on their heel, some outer-heel wear is typical (Finestone 2012).
What sources say: no source we read treats this pattern as a concern.
Outer edge
Wear running along the outside edge from heel to forefoot, often with the heel counter leaning outward. The American Academy of Podiatric Sports Medicine says a heel counter tipping outward can suggest a foot that rolls outward (supination), which tends to absorb shock less well.
Worth knowing: AAPSM suggests looking at several pairs before reading much into one. Some outer-heel wear is normal for heel strikers (Finestone 2012), so the sources differ on how much this pattern means.
Inner edge
More wear on the inside of the sole, toward the big toe and under the arch. Cleveland Clinic says this might mean the foot rolls inward more than average (overpronation). A large study of runners found moderately pronated feet were not injured more often in neutral shoes (Nielsen 2014), so this alone is not a reason to worry.
Where sources differ: Cleveland Clinic presents overpronation as an injury risk; the Nielsen study found no higher risk for moderate pronation in neutral shoes. Both agree pain is the signal to see a professional.
Heel
Heavy wear at the back of the heel. Most heel strikers wear here first. Kids may wear through their heels before they outgrow a pair (APMA). APMA also says uneven heel wear in children can point to a foot problem worth having a podiatrist check.
Worth knowing: the older Army clothing manual (FM 21-15) says to resole heels once they have worn down 7/16 of an inch. We found no current source that gives a number.
Ball of the foot
Most wear under the ball of the foot and toes, common for forefoot runners, court sports, and kids who run everywhere. The medical sources we used do not tie this pattern to a problem on its own. AAPSM notes that deep diagonal creases or toes pushing up into the upper can mean a poor fit, a shoe that is too stiff, or laces set too far forward.
Worth knowing: the sources we read point to fit and flex rather than foot problems for this pattern.
Toe tip
A scuffed or worn-through toe, very common on kids' shoes. Stride Rite lists dragging the feet as a sign that shoes may be too big. Children who walk on their toes after about age 2 should be checked by their doctor (American Academy of Pediatrics), even though toe walking is common in younger toddlers (NHS).
Worth knowing: the brand source ties toe dragging to fit, while the medical sources focus on toe walking and age. Measuring feet is a simple first check either way; see the kids' sizing guide.
Left and right differ
One shoe wears faster, or in a different spot, than the other. AAPSM says this can come from a difference in leg length or overstriding on one side. For toe walking, doing it on one side only is more concerning than both sides (AAOS).
Worth knowing: the sources name possible causes but do not say how big a difference matters. They do agree that limping or pain is a reason to have it looked at.
Where the sources disagree
| Question | What the sources say |
|---|---|
| Does inner-edge wear (pronation) raise injury risk? | Cleveland Clinic: it can. Nielsen 2014 (927 runners): not for moderate pronation in neutral shoes. |
| How much does a wear pattern reveal about the foot? | AAPSM uses wear patterns as clues. Finestone 2012 found only a weak link between heel wear angle and foot motion. |
| When to replace running shoes | APMA: 600 to 800 miles or 6 to 8 months. AAPSM: 350 to 500 miles. Cleveland Clinic: 300 to 500 miles. New Balance: by feel and look, not miles. |
| Hand-me-down kids' shoes | APMA advises against them. The other sources we read do not address hand-me-downs. |
We collect these views so you can weigh them. We do not pick a winner, and none of this replaces advice from a professional who has seen the feet.
When to replace a pair
- The tread is worn through or the sole is worn flat or has holes (New Balance).
- The edges of the sole are worn (American College of Foot and Ankle Surgeons).
- The midsole looks flattened, the outsole is uneven, or new aches show up (Cleveland Clinic).
- For running shoes, by distance. The sources give different ranges:
- APMA: 600 to 800 miles, or 6 to 8 months.
- Cleveland Clinic: 300 to 500 miles.
- AAPSM: 350 to 500 miles, sooner for heavier runners.
- AAOS: midsole foam shows wear after about 120 miles and has lost close to half its shock absorption by 500 miles.
- New Balance: go by how the shoes feel and look rather than a number.
Kids' shoes
- Check fit often. Kids' feet can grow quickly, and a pair can be outgrown long before the sole wears out. See the kids' sizing guide.
- Uneven heel wear in a child is worth a podiatrist's look (APMA).
- Toe dragging can mean shoes are too big (Stride Rite).
- Avoid corrective shoes or inserts unless a doctor prescribes them (American Academy of Pediatrics).
- APMA advises against hand-me-down shoes, because they are shaped by the first child's foot. If you choose to pass a pair on, the sizing sources' fit checks apply to the new wearer.
When to talk to a professional
- Foot, ankle, or leg pain that does not go away with rest (Cleveland Clinic).
- A child who limps, falls often, walks with a waddle, walks on their toes after age 2, or is not walking by about 15 months (American Academy of Pediatrics).
- Any concern about how your child walks or how their shoes wear (APMA).
Frequently asked questions
Can my shoe wear tell me whether I overpronate?
Not on its own. Wear is one clue among many, and studies link it only weakly to how the foot moves. A podiatrist can assess your feet and gait directly.
How often should I check?
None of the sources sets a schedule. Checking when you measure your kids' feet, or every month or two, makes changes easy to spot.
Should I buy a special shoe for my wear pattern?
The sources we read, including the American Academy of Pediatrics for children, advise against corrective shoes or inserts that a professional has not recommended.
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