If it's any help, the brand I buy is Reynolds Freezer Paper and it comes in a couple of different sizes in a blue box.
You can check with a butcher to see what they use to wrap meats; however, if one side of the paper is not waxy, it is not freezer paper. The waxy side is what adheres to fabric when you iron it.
Edit: The following thread is 12 years old, but it might explain why you can't find Reynolds Freezer Paper in Canada:
http://www.rcgroups.com/forums/showthread.php?t=72688