Experienced mountain trekkers have the option to apply on Fjällräven website for a chance to accompany a researcher, Anders Angerbjörn, for ten days in July in the Swedish mountains, to observe the behavior of Arctic foxes. The expedition is intended to determine the prey of the foxes. Five trekkers will be selected. The brand, whose name means Arctic fox, has been working since 1990 to increase the population of Arctic foxes living in Sweden.