What to wear to Igloofest: Montreal sits at -8°C (18°F) by day and -16°C (3°F) at night in January, on snow, with a moderate chance of rain. That means thermal layers under a statement outer layer, insulated waterproof snow boots, and a bag small enough for the gate rules. The crowd leans snow, techno and apres-ski, so black and functional reads as insider.
Women's outfits at Igloofest have to clear the same three hurdles as everyone else's. -8°C (18°F) by day, -16°C (3°F) at night, snow underfoot, with more options for solving them.
The short version: Loudest possible vintage snowsuit; frostbite is the only real dress-code violation.
The dominant aesthetics at Igloofest are snow gear, techno black, après-ski and party. That is the visual language of the site, the stages, the merch, the crowd photos, and outfits that speak it look intentional rather than borrowed.
This is a function-first crowd. Black, utility and good shoes read as insider; heavy glitter and fancy dress read as tourist. Nobody is stopping you, but you will feel it.
What people actually wear: a real coat over the outfit, thermals underneath, and boots with grip.