Halterneck is a style of strap which holds up women's clothing which features a single strap or material which runs from the front of the garment around the back of the wearer's neck, and which enables most of the wearer's back to be uncovered. The term is derived from the halter, which is placed around an animal's neck.

The halter style is commonly used with swimsuits, which enables the wearer to maximize sun tan exposure on the back and minimize tan lines. The halter style is also used with dresses or shirts, to create a backless dress or top. 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.

If a bra is worn with a halter top, it is generally either strapless or of halterneck construction itself, so as to avoid exposing the back straps of a typical bra.

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. In another style of the halter top, there is only a narrow strap behind the neck and a narrow strap behind the middle of the back, so that it is mostly backless. This design resembles many bikini tops, although it covers the chest more and may cover some or all of the abdomen at the front.

The neck is the part of the body, on many terrestrial or secondarily aquatic vertebrates, that distinguishes the head from the torso or trunk. The adjective (from Latin) signifying "of the neck" is cervical (though this more frequently used to describe the cervix).

The cervical portion of the human spine comprises seven boney segments, typically referred to as C-1 to C-7, with cartilaginous discs between each vertebral body. The neck supports the weight of the head and protects the nerves that carry sensory and motor information from the brain down to the rest of the body. In addition, the neck is highly flexible and allows the head to turn and flex in all directions. From top to bottom the cervical spine is gently curved in convex-forward fashion. It is the least marked of all the curves of the column.

In the middle line below the chin can be felt the body of the hyoid bone, just below which is the prominence of the thyroid cartilage called "Adam's apple", better marked in men than in women. Still lower the cricoid cartilage is easily felt, while between this and the suprasternal notch the trachea and isthmus of the thyroid gland may be made out. At the side the outline of the sternomastoid muscle is the most striking mark; it divides the anterior triangle of the neck from the posterior. The upper part of the former contains the submaxillary gland also known as the submandibular glands, which lies just below the posterior half of the body of the jaw. The line of the common and the external carotid arteries may be marked by joining the sterno-clavicular articulation to the angle of the jaw.

Nargis Fakhri (born 20 October 1979) is an American fashion model and actress.

Fakhri appeared on America's Next Top Model Cycles 2 and 3 in 2004. She posed for the 2009 Kingfisher Swimsuit Calendar. In 2011, she made her feature film debut in the Bollywood film, Rockstar, alongside Ranbir Kapoor which was released on November 11, 2011. Fakhri has reportedly signed her second film, Khiladi 786, with Akshay Kumar.

Fakhri was born in Queens, New York to a Czech mother and a Pakistani father. Her parents divorced each other when she was barely six or seven years old. Fakhri is a U.S. citizen. When asked about her father's homeland, she revealed that she has never visited Pakistan. Her favourite hobbies include cooking, meditation and yoga.