Open Front: Unlike a pullover sweater, a cardigan has a full opening down the center front.

Closure: This opening is typically secured with buttons or a zipper, although many contemporary styles, known as open-front cardigans, have no fasteners and are designed to be worn hanging open.

Material: Traditionally made of wool, modern cardigans are crafted from a variety of materials, including cotton, cashmere, synthetic fibers, and blends.

Collar: They are often collarless but can feature variations like a V-neck, crew neck, or a shawl collar.

Function: They serve as an excellent layering piece, providing warmth and an easy way to add style to an outfit, making them suitable for casual, business-casual, or even semi-formal settings.