I had seen the envelope with a friend. Its shell was made of solid, durable substance. Based on the product name and the serial number I specifically ordered me this envelope on Amazon.com. The product images show clearly a case with fabric exterior and also exactly the "rough" stuff like this I had with my friend in his hand. But was delivered a shell made of synthetic leather, which additionally in the closure magnets poor (magnets push through!) Was processed. As I previously already had a kratzempflindliche (even real) leather sleeve, this goes back because clearly differing description of the actual state.