Under what circumstances will air-cushion shoes leak?

It depends on the specific situation. For example, the quality of shoes, the degree of polishing, the air cushion is too full, and even the weather may cause air leakage. In fact, it is mainly the usual maintenance of sneakers. No matter how good the shoes are, your shoes are also basketball shoes. I think everyone knows that basketball shoes are the most expensive to wear. My heel is worn out and my insole is leaking out. Ha ha! Exaggerated. Let's soak him in water and see if there are any leaks. If the upper leaks, stick it with 502. If the sole leaks, you have to buy a new one. Hehe, that's what I did.