Canadian brands should still be cheaper than in US, e.g. club monaco, TNT.
Besides you can get duty and tax back, if you file the tax refund form. But it is too late for winter clearance sales. It is the time for spring new arrivals.
Otherwise, you can consider LV. The pre-tax prices of LV are lower than those in US, because LV keeps the after-tax (+13% tax) price in Canada equivalent to those in US based on 5% tax.
If you file the tax refund form, it is definitely cheaper to buy LV in canada than in US.
Many people are not aware of this though....