A smoking jacket is an overgarment designed to be worn while smoking tobacco, usually in the form of pipes and cigars, or for domestic leisure.
The classic smoking jacket is a mid thigh-length jacket made from velvet, silk, or both. It has a shawl collar and turn-up cuffs and toggle or button fastenings, or may simply be closed with a tie belt.
In the 1850s, the Gentlemen's Magazine of London defined the smoking jacket as a "kind of short robe de chambre, of velvet, cashmere, plush, merino or printed flannel, lined with bright colours, ornamented with brandebourgs, olives or large buttons."
In the 17th century, goods began flowing into Europe from India, Asia and the Americas, bringing in spices, tobacco, coffee, and silks. It became fashionable to be depicted in one's portrait wearing a silk robe de chambre, or dressing gown. One of the earliest mentions of this garment comes from Samuel Pepys, who desired to be depicted in his portrait in a silk gown but could not afford one, so he rented one: