Best non-PVC/stapled flips

Hi,

I am looking for some flips that allow me to easily remove/store my found coins. I currently and using the stapled flip method but I find myself sometimes wanting to take my finds out and handle them. I would want something non-PVC and it would need to fit in my coin book (which I believe are the 2" x 2" sleeves). Also, something double-sided which would allow the little cardboard inserts that you can print/write info about the coin(s).

Thanks in advance!