In Norse mythology, the lfar, or Elves, are usually considered to be the height of humans or just above. The Light Elves are supposedly fair to look upon, and they live in lfheim.
The Svartalfar (Dark Elves) live in the dark, and are slightly more mischievous. They are often associated with Dwarves.
The Eddas tend to use lfar and Vanir interchangeably.
The alfar have been shaped by millennia of dwelling underground: The eternal darkness of the caverns has paled their skin; some senses have been sharpened while others have been dulled; and a constant shortage of nourishing foodstuffs has given them a slighter stature than the surface-dwelling races.
Alfar build is generally slight, and few individuals are notably overweight or muscular.
The dextrous alfar body is perfect for moving swiftly and silently, and while they are incapable of the most extreme feats of brawn, their lithe forms conceal surprising amounts of sinewy strength.