How to choose running shoes: cushioning, fit and when to replace them
A guide to picking running shoes: cushioning, drop, correct size, road versus trail and how many kilometres before you replace them.

1. Start with use and comfort
The best shoe is the one that feels comfortable: comfort is the most reliable criterion. Choose by where you run (road, dirt, trail), distance and body weight. For daily training you need a 'daily trainer' with good cushioning and stability, not a race shoe.
2. Size and fit
Try shoes on in the late afternoon when your feet are slightly swollen, with the socks you'll run in. There should be about a thumb's width between your longest toe and the end of the shoe; the heel should stay put and the toes should move freely. You often need half a size or a full size up from your normal shoes.
Walk and hop a few times in the store: if you feel pressure or rubbing, try another model.
3. Cushioning, drop and shoe type
Softer, taller cushioning is more comfortable on long distances and for heavier runners. A drop (heel-to-toe height difference) of 6-10 mm is most common; a low drop needs gradual adaptation. For trails choose a trail shoe with a lugged outsole and toe protection; for asphalt a lighter road shoe.
Carbon-plated shoes are designed for racing: use them sparingly, not for every workout.
4. When to replace them and how to make them last
On average a shoe should be replaced after 600-800 km, sooner if the cushioning feels flat or you get new knee or shin pain. If you can, rotate two pairs: the foam recovers between runs and wear is spread out. Track the kilometres: you can do it in the gear section of Velunite.
Don't machine-wash them or dry them on a radiator: it ruins glue and foam.
FAQ
Do I need a gait analysis?
Not required: if you have no pain, comfort matters most. If you have recurring problems, see a physiotherapist or a specialist store.
Can I run in gym trainers?
It's not recommended: they have less cushioning and stability for the repeated impact of running.
How much does a good running shoe cost?
For training a good shoe is available at mid prices, often discounted on last year's models: a higher price doesn't guarantee more comfort.