People from the expedition wear a flag of their country on their left sleeve, although the Velcro patches are occasionally removed for security or off-world excursions. According to Dr. Elizabeth Weir, the mission includes people from over a dozen countries. Some of the flags seen on-screen represent Australia, Belgium, Canada, China, the Czech Republic, Egypt, Germany, Japan, New Zealand, the Philippines, Portugal, Scotland, South Africa, Spain, Sweden, the United Kingdom and the United States of America.