An opera coat is an ankle- or floor-length loose-fitting coat of luxurious fabric such as velvet

Velvet

Velvet is a type of woven tufted fabric in which the cut threads are evenly distributed,with a short dense pile, giving it a distinctive feel.The word 'velvety' is used as an adjective to mean -"smooth like velvet".-Composition:...

, brocade

Brocade

Brocade is a class of richly decorative shuttle-woven fabrics, often made in colored silks and with or without gold and silver threads. The name, related to the same root as the word "broccoli," comes from Italian broccato meaning "embossed cloth," originally past participle of the verb broccare...

 or satin

Satin

Satin is a weave that typically has a glossy surface and a dull back. It is a warp-dominated weaving technique that forms a minimum number of interlacings in a fabric. If a fabric is formed with a satin weave using filament fibres such as silk, nylon, or polyester, the corresponding fabric is...

, to be worn over an evening gown

Evening gown

An evening gown is a long flowing women's dress usually worn to a formal affair. It ranges from tea and ballerina to full-length. Evening gowns are often made of a luxury fabric such as chiffon, velvet, satin, or silk...

 or a man's tuxedo. It may be described as a fitted cloak

Cloak

A cloak is a type of loose garment that is worn over indoor clothing and serves the same purpose as an overcoat; it protects the wearer from the cold, rain or wind for example, or it may form part of a fashionable outfit or uniform. Cloaks are as old as human history; there has nearly always been...

 with sleeves and is generally not as tailored as a coat. Men's opera coats are frequently worn with a cane

Cane

Cane are either of two genera of tall, perennial grasses with flexible, woody stalks from the family Poaceae that grow throughout the world in wet soils. They are related to and may include species of bamboo. The genus Arundo is native from the Mediterranean region to the Far East. Arundinaria...

 and top hat

Top hat

A top hat, beaver hat, high hat silk hat, cylinder hat, chimney pot hat or stove pipe hat is a tall, flat-crowned, broad-brimmed hat, predominantly worn from the latter part of the 18th to the middle of the 20th century...

.

Like cloaks and cape

Cape

Cape can be used to describe any sleeveless outer garment, such as a poncho, but usually it is a long garment that covers only the back half of the wearer, fastening around the neck. They were common in medieval Europe, especially when combined with a hood in the chaperon, and have had periodic...

s, the opera coat is usually lined in a coloured expensive fabric such as silk

Silk

Silk is a natural protein fiber, some forms of which can be woven into textiles. The best-known type of silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity...

 or a weave like satin, for a more opulent look. An opera coat often has an elegant or dramatic collar and may have padded sleeves. It may or may not be trimmed in fur

Fur

Fur is a synonym for hair, used more in reference to non-human animals, usually mammals; particularly those with extensives body hair coverage. The term is sometimes used to refer to the body hair of an animal as a complete coat, also known as the "pelage". Fur is also used to refer to animal...

. It often has an elaborate braided rope instead of buttons at the neck