Where? A little bit everywhere around the city! Create your own itinerary by clicking here. 
When? See the program on their website

www.portesouvertesdesignmontreal.com

For the fifth year in a row, the City of Montréal is giving the public the opportunity to discover the 25 000 designers who are responsible for our surroundings. Putting the spotlight on all disciplines of design (including fashion!), city dwellers will have two days to go in and out of spaces, to meet with the designers and to discuss everything and anything that has to do with their line of work. Montréal is also celebrating its fifth anniversary as UNESCO City of Design and this event is an hommage to every actor who has contributed to building it. 

Check out the list of all the participating fashion designers! (Unavailable in english) 

 

Source : www.portesouvertesdesignmontreal.com