Some cigars come in storage tubes, usually aluminum or glass. The tube alleviates somewhat the need for a humidour.
It should not be construed as a clear indicator of cigar quality.
You can also buy fancy cigar tubes from jewellers. No matter how fancy the tube, though, it is only a tactical solution, useful for carrying around one stogie for some days.
Cigars should reside in a humidour, either yours or the shops'.