How to choose running shoes: fit, drop and cushioning

A shoe that fits will feel comfortable from the first step. One that does not will not improve with time. The American Academy of Orthopaedic Surgeons suggests shopping at the end of the day or after a workout, when feet are largest, and wearing the socks you run in.

• Length: about half an inch, roughly a thumb’s width, between your longest toe and the end.
• Width: your foot should not spill over the edge of the insole. Many shoes come in wide versions.
• Heel: snug, with no lift as you walk. Lacing through the top extra eyelet locks it in.
• Toes: room to wiggle; no seam pressing on a toe joint.
• Both feet: fit the bigger one. Most people have one foot slightly larger.

Feet change. They can lengthen and widen over the years, and after pregnancy. Measure every time you buy rather than assuming last year’s size. Sizes also vary between brands, and even between models from one brand, so treat the number on the box as a starting point.

Drop is the height difference between the heel and the forefoot, in millimeters. It changes how the shoe rolls you forward, not how much cushioning it has.

If you change drop a lot, for example from 10 mm to 4 mm, do it gradually. A big drop change shifts load toward the calves and Achilles.

Most daily trainers sit between 6 and 10 mm, so a beginner rarely has to think hard about drop. It matters mostly if you are switching between very different shoes, or if your calves or Achilles complain after a change.

Cushioning is the depth and softness of the foam under you, often called stack height. More foam feels softer on long runs and suits heavier runners and walkers. Less foam feels lighter and more connected to the ground. Neither is right or wrong. Pick what feels good on a few test strides.

• Firm, moderate cushioning: entry shoes such as the ASICS GEL-CONTEND 10.
• Balanced daily cushioning: the Brooks Ghost 18, Nike Pegasus 42 or New Balance 880v15.
• High, soft cushioning: the ASICS NOVABLAST 6 or On Cloudsurfer 2.

Weight matters less than people think for easy running. A daily trainer between about 9 and 11 oz suits most beginners. Lighter shoes tend to have less foam and wear faster; heavier ones often last longer. If two shoes feel equally good, pick the lighter one, but never trade fit for a few grams.

The GEL-CONTEND is a firm entry shoe. The Ghost 18 is a classic 10 mm daily trainer. The 880v15 has a lower 6 mm drop with similar cushioning. Trying these three side by side is a quick way to learn what you like.

Neutral shoes have no added support. Stability shoes add firmer foam or guide rails to limit how far the foot rolls inward. Most beginners do well in neutral shoes chosen for comfort. Try a stability shoe if a neutral one feels like it collapses under your arch, or if a running store or specialist suggests it for a problem you already have. Persistent foot, shin or knee pain is a reason to see a doctor or physical therapist, not just to change shoes.

1. Measure both feet standing; sizes vary between brands.
2. Try two or three models in the same size, wearing your running socks.
3. Lace them fully and jog on a hard surface, a treadmill if the store has one.
4. Take note of anything that rubs, pinches or slips. One problem rules a shoe out.
5. Pick the one you forget you are wearing. Ask about the return policy for worn shoes.

Mistakes to avoid at the store:

• Trying shoes on in the morning, then finding them tight on an evening run.
• Testing only on carpet. Jog on a hard floor or a treadmill.
• Letting color win over fit. Choose by color only between two pairs that fit equally well.
• Assuming the most expensive shoe is the best for you.

Most shoes last roughly 300 to 500 miles. AAOS offers a rule of thumb: 75,000 divided by your weight in pounds gives the miles. Replace them sooner if the foam looks creased and flat, the tread is worn through, or aches appear that were not there before. Keep a note of the date you start a pair. If you walk or run a long challenge such as KYLIN, about 54.7 miles, the X Challenge app’s total gives you a running count.

• Should running shoes feel tight? Snug at the heel and midfoot, roomy at the toes.
• How do I lace for a heel that slips? Use the extra top eyelet to tie a runner’s loop, also called a heel lock.
• Do insoles help? Most people do not need them. See a podiatrist if you have ongoing foot pain.
• Can I buy the same shoe again? Yes. If a model has served you well, the next version is usually a safe choice, though check the fit, since updates sometimes change it.
• Half a size up? Often yes, compared with your everyday shoes, because feet swell on runs.
• Road or trail shoes? Road shoes for pavement, paths and treadmills. Trail shoes have grippier soles for dirt and mud.
• Do I need a different shoe for walking? No. A cushioned running shoe works well for walking challenges too.
• Wide feet? Look for a wide (2E for men, D for women) version. ASICS, Brooks and New Balance make wide versions of many daily trainers.

• Athletic Shoes, OrthoInfo (American Academy of Orthopaedic Surgeons)

Prices are list prices at the brand’s own store on the day checked. They change, and sales are common, so check the live page before you buy. We picked by specs, fit notes and price; we have not run in every item. For specific models at each price, see running shoes by budget.