These bags work fine for me in my Kenmore canister. No, they're not the fabric kind, but a Sears vacuum salesman told me the difference in allergen-trapping effectiveness between the true Hepa bags and the paper ones is a matter of a few percent. I don't recall the exact numbers, but I knew my reaction at the time was the allergen-trapping difference was TOTALLY not worth the price difference.
I'm writing this review because of a problem I found with the cardboard frame at the mouth of the bag. In my vac, this frame slides into a slot that holds it in position. The problem is that the bag is glued almost up to the edge of the cardboard on some bags so that there is not enough clearance for the cardboard to slide into the slot. It's not a lot, but it's enough that I ripped two bags trying to get them installed. If you look at the bags when you get them you will see a fair amount of deviation in how much clearance you have. Some bags are ok, some are not.
It makes what seems like a great deal--so many bags for not so much money--less so, because some bags are not usable or rip upon installation.
I might still buy them again because the price is so good, but I will do it knowing the risk I'm taking.