It depends on how you bowl in them and it depends on how well you keep them up. If you can only where your bowling shoes in the bowling alley and wear a bowling shoe cover while at the bowling alley and in the bathroom and don’t get them wet, then they should last 2 years and more. If you just bowl once in a while then maybe 4 to 5 years but if you bowl in a bowling league and you bowl once or twice per week, then 2 or 3 years. Just keep bowling shoes dry, don’t get them wet and only wear at the bowling alley.