These bags fit nicely in my Kenmore Progressive Rack which normally holds 50690 bags. The material seems a little thinner than the "OEM" bags, but the filter performance is very good for the price and the capacity seems to be the same. You won't be able to use them fully as the suction power will start to drop like it did with OEM cloth bags. After 4+ years of exclusive use, the inside of the bag compartment is clean and the exhaust filters have a long service life as well. These are regular Envirocare packages that can sometimes be found cheaper on *bay. The nice thing is that the cardboard topper has a glue tab that you can seal with a hole when the bag is done, saving you dust when throwing it away.