Regarding whether the model of running shoes is the latest, Old Wei has always stated that it is not important. Sometimes, even the price of old shoes is cheaper, but their performance is not much worse than the current new ones, making them very cost-effective and competitive.

Generally, shoes that were manufactured three or four years ago should be avoided or not bought. Because its midsole performance cannot support normal duration.

2. Mileage
The outsole is still there, which only means that these shoes can still be worn and walked. The performance of the midsole has long been exhausted before this. As a running shoe, the disappearance of midsole performance means that it can no longer perform as well as it should in running sports.

Generally speaking, we use the value of 500 kilometers as the watershed for the midsole of running shoes. Running shoes that exceed this mileage range will basically lose their midsole performance. Of course, it is not denied that some styles of running shoes have midsoles that can support for longer periods of time. But no matter what, it's difficult to exceed 600 kilometers.

3. Damaged shoe body
Under normal circumstances, if there are some holes or signs of severe wear on the exterior or interior of the shoes. At this point, you should consider changing your shoes.
Because if you continue running, the wear and tear may have an impact on your feet, such as blisters, abrasions, and other issues.


Running shoes are the most crucial and fundamental equipment in running sports. A pair of qualified running shoes can not only help you avoid more risks during exercise, allowing you to exercise healthier, but also improve your performance.