3 Ring Binder

I have been looking into 3 Ring Binders to hold a catalog…1.5"-2" in size. I want to stay away from vinyl. Maybe something with a fabric or recycled material? Metal is out of the question due to costs. Buying in bulk (few thousand?) so I hope to be around $4 max.

Has anyone come across any binders that stuck out to them for a specific reason or know of any suppliers? For the sake of quality, not thinking of price…

I like the Kolo Travino, but its pricey.

or Naked Binders