A layback spin is an upright spin where the skater leans "lays" back or to the side. There are different variations and features.
The iconic layback position is one in which the torso is bent backwards, the free leg lifted, and the arms extended above the torso, bent in an approximation of a circle. This creates a unique impression during the spin. This position has become iconic of figure skating, showing up in logos and banners promoting figure skating events, including the Olympic Games.
A layback spin can also be performed with the torso leaning more towards the side, in which case it is known as a side layback or sideways-leaning spin. Both backwards and sideways-leaning positions in a layback spin are considered a feature that adds difficulty under the ISU Judging System.