This
thread says they are ITAR, and generally with my understanding of most retailers that sell ITAR restricted items, usually that means if one product is ITAR, the rest of them are ITAR as well.
IE. Magpul products are ITAR, so although the PMAG iPhone cases they make are exactly that, an iPhone Case, you still cannot import it.
Your best bet is to contact the retailer and ask if they can ship it to Canada.