Edit:
After about a year, I can the product still say it still keeps the dust well!
But now the fabric on the sides is quite frayed and loses gradually the initial good fit!
A good grip on the keyboard is thus unfortunately only conditionally possible!
For this low price, I'm still very satisfied and would protect even buy me again because he did good service for 1 year!
Finally, there are even here more expensive products that serve their purpose to the price / performance is not better!