Of course I also recommend the full-zip Shak or Boucle by Ibex.

BUT:

Check-out the Lululemon-look-alike stores that are everywhere in Vancouver. (There is one, among others, not too far east from Granville on Broadway). They tend to have jackets will a full-zip that goes on top of a yoga top. Sometimes they are "fleecy" (but not as thick as a sweat-top though).