It was unseasonably warm when we boarded a plane in Calgary on Sunday morning, but even -1ºC (30ºF) is chilly. When we left the airport in Mexico City at almost midnight it was +19ºC (66ºF). How do you dress for a day with that kind of temperature variation?

The answer, of course, is layers.

My base layer was a long-sleeved, striped sweater. Next came a hoodie and then my ultralight down vest from Uniqlo. The final layer was a spring jacket that is both wind and waterproof. While each layer was very lightweight, together they provided ample warmth on a chilly Alberta morning. After the photos were taken during a layover at the Vancouver airport, the vest came off and was tucked into an outer pocket of my tiny suitcase. Some people find jeans uncomfortable for long days sitting on a plane, but I practically live in them and find them very comfortable. A pair of good walking shoes completed my ensemble.

Not only is YVR Vancouver’s international airport, but it’s also home to a permanent collection of more than 210 pieces of art, much of it work of British Columbia’s indigenous artists. The pieces behind me represent The Story of Fog Woman and Raven. Carved of cedar wood in 2007 by Dempsey Bob, they tell the story of how the annual salmon run originated to benefit the people of the northern coast of BC and the southern coast of Alaska. Immediately behind me, Raven perches on the side of a pool, beak uplifted, smiling and well fed, while to the side, Fog Woman kneels at the head of a stream.

Once we reached our destination, the clothing that I wore to travel in was set aside and won’t be worn again until our return trip unless we have a really chilly day while we’re here.