A sweater, pullover, jumper, or jersey is a relatively heavy shirt intended to cover the torso and arms of the human body (though, in some cases, sweaters are made for dogs and occasionally other animals) and usually worn over a shirt, blouse, T-shirt or other top. Sweaters tend to be, and in earlier times always were, made from wool (typically of sheep, though possibly of alpaca or other type); however, they can be made of cotton, synthetic fibres, or some combination thereof. Sweaters are maintained by washing, and the use of a lint roller.

Types and design

The term "sweater" is a catch-all for various types of garments. A fundamental division is between a cardigan (which opens in front) and a pullover (which does not). If the sweater has no sleeves, it is generally called a sweater vest or tank top.

Even within these groups, there is a great variety of design. All the various types of necklines are found, although the V-neck, turtleneck and the crew neck are the most popular. The waistline is typically at hip height, but can vary significantly. The sleeve length is likewise variable, ranging from small cap sleeves to short sleeves to three-quarter sleeves to full-length sleeves. The front seam of a cardigan allows for further possibilities, such as a surplice or a bolero jacket. All the hems may have various types of borders, such as picots, ribbing (knitting) and frills.

One advantage of sweaters is that they conform well to the body without requiring the tailoring as woven garments. For example, shaping such as darts, flares and gores — commonly found in woven blouses, a comparable garment — are rarely needed in sweaters, thanks to the Elasticity and drape of knitted fabrics. Even when such shaping is needed, it can be knit into the fabric itself, without requiring seams. However, this very elasticity makes it necessary to use more care when washing.

Nomenclature

If made of thick cotton, it is usually known as a sweatshirt. A hooded sweatshirt is commonly known as a hoodie. These items of clothing have been vilified in the United Kingdom as representative of a yob culture and banned from a number of shops and shopping centres.1 However hoodies showing affliation to subjects, groups, colleges (in the case of collegiate universities) and universities themselves are common wear from students in further education. A jumper with an open front fastened by buttons or a zipper, is called a cardigan. A hockey sweater was, in the early days of ice hockey, recognisable as what people in the 2000s would call a sweater, but has since evolved into a sort of jersey. Thus, in modern-day North American usage, the shirt of an ice-hockey player's uniform is traditionally called a sweater, regardless of the style.