Halterneck

Halterneck is a style of women's clothing strap that runs from the front of the garment around the back of the neck, generally leaving the upper back uncovered.

[2] The word "halter" is of Germanic origin and means "holder" or "that which holds".[3].

The neck strap can itself be covered by the wearer's hair, leaving the impression from behind that nothing is holding the dress or shirt up.

A halter top is a type of sleeveless shirt similar to a tank top (by the American English definition) but with the straps being tied behind the neck.

It has been suggested that the neckline's appeal stems from the fact that "it eliminated the need for spoiling the back detail with straps, leaving an uninterrupted area of skin to expose to the sun by day and display by night.