Something casual and comfortable that shows your personality, do not wear anything to formal. Remember, people that work at Lululemon dress for comfort!
Answered - Product Specialist (Current Employee) - Vancouver, BC
Lulu-lemon clothing if you have any, if not athletic casual clothing.
Answered - Educator (Former Employee) - St. John's, NL
Athletic gear is a safe bet
Answered - Educator (Former Employee) - Hamilton, ON