Fjällräven is a Swedish company specializing in outdoor equipment. Their Kånken backpacks have gained a lot of popularity in the past couple of years, first in Europe and then in the US, due to the Scandinavian look and also the fact that they come in a variety of fun colors.
Though they are a slightly high price point for a backpack, especially if you're purchasing it for a teenager, we love Fjällräven's Kånken Mini backpacks. The material is built to last as long as it's timeless silhouette so it's both fashionable and functional gift that your giftee can keep for a long long time.