Boxer briefs are a type of men's underwear brief with longer legs than regular briefs. Boxer briefs are comparable to boxer shorts. However, boxer briefs are more form-fitting. Boxer briefs were initially introduced to the market in 1990. Briefs existed before this, but they were considered mid-length or thigh-length men's briefs.

Underwear briefs have grown extremely popular, particularly among youngsters. Traditional men's briefs are considered confining, while boxer shorts are considered overly loose. The boxer brief is a hybrid of the two, providing better comfort and freedom of movement. Briefs have a pouch in the front to add to the feeling of comfort. Boxer briefs aren't just for everyday underwear; they're also popular among athletes.

Boxer briefs absorb more sweat and provide them more freedom of movement, so they wear them alone or with a jockstrap. Many individuals like to wear briefs because they are more stylish than regular briefs or boxer shorts and provide a snug and secure feeling. Briefs are especially comfortable for long journeys and for persons who engage in a lot of physical activity since they allow for full leg movement without restricting movement.

Men's briefs are typically worn as underwear briefs. However, they can also be worn as shorts informally. Briefs provide figure-hugging covering from the waist to the thighs, and they are worn around the waist with elastic. Briefs come in various styles, including those with a keyhole fly, snap front, pouch, or no-fly. Some men's briefs contain backstitching, which eliminates the need for a center seam. Briefs, also known as underwear briefs, are composed of various materials; some are woven, while others, like most men's briefs, are knit.

Trunks are a smaller form of boxer briefs. When compared to traditional boxer briefs, these have slightly shorter legs. They are commonly used as swimwear. They can also be worn under board shorts. Boxer briefs are extremely comfortable because they often do not have tight-fitting elastic around the legs; instead, the fabric of the briefs provides the necessary elasticity, allowing for maximum flexibility and ultimate comfort in the leg zone.

Briefs provide more support and help to define outlines. Briefs are available in a variety of materials and fabrics. The fabric must have a fair amount of stretch and be soft on the skin. A good fabric should also be able to resist repeated washing without losing its shape or functionality. Men's briefs are available in various colors, ranging from white, black, blue, and grey to bolder hues such as red, green, and purple. There are a plethora of styles and patterns printed on boxer briefs, including checks, stripes, flower prints, slogans, and flag prints, to name a few.