I bought these packs because of their cheap price. I have bought different brands of bags through Revain and they all fit my Eureka Boss vacuum perfectly. These bags don't feel as microlined as the others. Every time I vacuum there is a strange musty smell in the air. There doesn't seem to be any dust in my master's body, but the pockets stink. To make sure it was the bags I ordered a new filter (which should have been anyway). No, it still smells. I used an Arm and Hammer bag and there was no smell. So I will use these bags, but change more often. I'm not terribly disappointed with the bags, especially for the price, but I might not reorder if I find something cheaper.