Reusable Vacuum Cleaner Bags: Stay away

I bought this reusable microfiber vacuum bag at a trade fair, one for 10 euros. You can often see the advertising for it on the TV on these shopping channels (HSE, QVC, RTL shop, ...)

My result:

The bag is unfortunately more than permeable, my entire vacuum cleaner was after sucking inside as if covered with flour. The zipper was broken after the third time empty.

So let it be, and rather buy the expensive bags in the store, which are really worth more.