>> 09/16/2013 Tired of paying high prices for Original Miele G/N bags, so I tried a small (5) pack of these bags. I have read that other generic brands can leave dust in the vacuum cleaner but NOT this one. They're a bit thinner than Miele but have a good seal without letting dust get into the vacuum. You can't really tell the difference between them and Miele other than that they're thin. Next time I'll buy them in a pack of 25, which is significantly cheaper than at Miele. Miele bags are just too expensive, overpriced in my opinion. I've only used 2-3 of these bags so far so far so good, if I find any faults I'll update the review and star ratings accordingly. I'll stick with 5 stars for now. >> UPDATE January 19, 2015 For Crucial Vacuum: Why isn't the 25 pack with the ASIN B00AI1UKC4 available for 1.6 mule per pack, only want to offer a 5 pack to get more mule? >> PS I'm not sure what other reviewers are saying about the box fit and dust leakage. I've used at least 10 of these bags, so none of them had any issues with cardboard fitting or dust escaping. The last 25 packs I bought were in March 2014, they look the same as the original Mieles just a little thinner. So far no complaints.