I was looking for a case for my AirPods for a reasonable price and I have to say that this a great choice. Not only it has a cool design (I kinda reminds of a Stormtrooper), but it work absolutely fine and saved my AirPods couple times. So, if your looking for a nice and effective case for your 1Gen AirPods, that's the perfect choice for you.
Since I've Amazon Prime this was delivered to me the day after I order it, without any shipping fees, so I'm really sure about the shipping costs and time if you don't have Prime.