How long do Pringles last once opened?

I'm curious to know, once a bag of Pringles has been opened, how long can they be kept before they start to lose their crispiness or go stale? Is there a recommended timeframe for consuming them after opening to ensure they retain their signature flavor and texture? I've noticed that sometimes they can get soft quickly, so I'm wondering if there's a trick to keeping them fresh for longer. Any insights you can share on this matter would be greatly appreciated.