Hotel Le Cantlie Suites

I'm from Holland and I saw pictures of pink Vitamin Water bottles everywhere on the internet. I would really like to try some, and fortunately, my mother is a stewardess and she goes to Montreal in February. I checked the website of Vitamin Water, but it says they sell in the U.S., but despite what I have seen many people advise on where to buy water vitamin in Canada.
So I was wondering, is my mother's hotel Cantlie The Suites on Sherbrooke Street. Does anybody know a store in this area where she could buy me some vitamin water?

I wouldnt buy vitamin water in his wicked drink propel.