M&S COLLECTION Denim Belted Midi Shirt Dress

Denim is a sturdy cotton warp-faced textile in which the weft passes under two or more warp threads. This twill weave produces a diagonal ribbing that distinguishes it from cotton duck. Denim, as it is recognized today, was first produced in Nîmes, France.

Denim is available in a range of colors, but the most common denim is indigo denim in which the warp thread is dyed while the weft thread is left white. As a result of the warp-faced twill weaving, one side of the textile is dominated by the blue warp threads, and the other side is dominated by the white weft threads. Jeans fabricated from this cloth are thus predominantly white on the inside. Denim is used to create a wide variety of garments, accessories, and furniture.

A dress (also known as a frock or a gown) is a one-piece outer garment that is worn on the torso and hangs down over the legs and is primarily worn by women or girls. Dresses often consist of a bodice attached to a skirt.

Dress shapes and silhouettes, textiles, and colors vary. Dresses can have sleeves of any length or can be sleeveless, and dresses can have any neckline. Similarly, dresses can have skirts of any length or hemline. These variances may be based on considerations such as fashion trends, modesty, weather, and personal taste. Dresses are generally suitable for both formal wear and casual wear in the West.

Historically, foundation garments and other structural garments—including items such as corsets, partlets, petticoats, panniers, bustles—were used to achieve the desired silhouette.

M, or m, is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide. Its name in English is em (pronounced ), plural ems.

S, or for lowercase, s, is the nineteenth letter of the Latin alphabet, used in the English alphabet, the alphabets of other western European languages and other latin alphabets worldwide. Its name in English is ess (pronounced ), plural esses.

A shirt is a cloth garment for the upper body (from the neck to the waist).

Originally an undergarment worn exclusively by men, it has become, in American English, a catch-all term for a broad variety of upper-body garments and undergarments. In British English, a shirt is more specifically a garment with a collar, sleeves with cuffs, and a full vertical opening with buttons or snaps (North Americans would call that a "dress shirt", a specific type of collared shirt). A shirt can also be worn with a necktie under the shirt collar.