June 2026: The Birken Executive Committee has decided that, from the next competition in March 2027, the backpack may weigh no more than 2 kg, as modern materials allow for efficient and lightweight clothing. So no more sandbags or lead weights. ;-)

Welcome to the legendary Birkebeiner Ski Race! The Birkebeinerrennet is one of the oldest and most challenging races in the Worldloppet series with 18'000 participants. This cross-country course is 54 kilometres long crosses two mountains, the track takes you through breath-taking sceneries. The start is at Rena, the finish is reached at the Birkebeiner area at Lillehammer, the famous stadium from the 1994 Olympic Games. All competitors must carry a backpack that weighs at least 2 kg. This backpack weight is supposed to mirror the weight of the baby who became the future King Hakon.