gilet

A gilet is a sleeveless garment worn on the upper body. In English, the term closely corresponds to a waistcoat and is commonly worn over a shirt and under a coat or jacket for warmth or layering. In French, gilet is a general term for a vest and can denote various sleeveless garments, from formal waistcoats to protective vests when qualified by an additional descriptor.

Gilets vary widely in material and construction. Tailored versions use wool, tweed, or linen and may be lined; casual versions include quilted or padded gilets; outdoor versions use fleece or down for insulation or a lightweight shell for wind resistance. They typically have a front closure with buttons, snaps, or a zipper, and may include pockets, a collar, and a back adjuster to alter fit. They are designed to insulate the core while allowing free movement of the arms.

Traditionally part of a three-piece suit, the waistcoat/gilet remains a formal option in menswear in many regions. Beyond formal wear, gilets are popular as versatile outerwear for layering in cool weather, outdoor activities, or street fashion. Some styles emphasize sport or technical performance, offering features such as water resistance and packable insulation.

In contemporary English, gilet is often used in fashion contexts to describe a sleeveless jacket ranging from formal waistcoats to casual vests. In French usage, gilet can also refer to protective vests such as a bulletproof vest (gilet pare-balles) or safety vests when paired with a descriptor.