Riding Apparel Horse Back Riding Apparel Retailers In Canada? PLEASE HELP?

Horse back riding apparel retailers in Canada? PLEASE HELP? - riding apparel

I just started riding lessons and I need a woman's trousers, belt boots, chaps and a helmet average.
The only company in Canada that I know is Greekhawk. His boots are reallly expensive.
Can someone tell me the name of a company in Canada (London, Toronto and Burlington), the sale of these things? In particular paddock boots!

And I really need, or can I boot paddock boots instead?