I wouldn't replace just one vane. Put three new vanes on the arrrow with the damaged vane. Standard 4" synthetic. I doubt if the difference in weight (if any) is going to be noticable on an economy arrow like the Wolverine.

If your really want to do it right, pick up a quanitity of Blazer vanes and just replace them all. Then if you lose one, there won't be any doubt about what vane is an exact replacement.