I have an Ameristep Doghouse. It folds up to about a 24" diameter circle, fits into its backback, and weighs about 14 lbs. It can pop up and take down in about 10 seconds. You can now get them with Scent Control.

I am kinda curious to why people don't like the metal loop blinds. The hub style acts more like an umbrella. They are nice, but pricey, and they weigh more. So why not metal loop blind?????