Very disappointed with these bags. I expected them to be "as good" as Miele bags. This is not the case. It is important not to use the maximum power of the bags Miele Vacuum otherwise opening the bag is not waterproof and dust exfiltrate between the pipe and the bag and goes into the engine. A disaster! I tried several times and used several bags to be very sure of me before posting a comment. Unfortunately, not only are these bags are not suitable for maximum power, but also an average power of the vacuum. Do not buy these bags, unless using only the minimum power of the vacuum. Otherwise, you will have the full receptacle dust bag of the vacuum cleaner. Conclusion: Bad economy when we see the investment represents a Miele vacuum cleaner.