Aritzia Boxing Day Sales and Deals Canada 2013 Aritzia Canada Boxing Week Sale has started! Save 20-50% on ALL Fall/Winter merchandise! This Aritzia boxing week sale is valid online and in-store for a limited time. Also, Aritzia Canada are opening their doors at 7AM on Boxing Day! Click here to get this Boxing Week sale at Aritzia Canada. Click here to find Aritzia Canada store near you.