A belted knee length dress for cocktail uses the belt to create visual interest and define the waist. The dress is usually simple and plain so the belt becomes the detail. The belt might be integrated or removable depending on design. Knee length with a belt at the waist creates good proportion and emphasizes shape. The fabric can be plain or printed. The belt is often a contrasting color or texture. A good belt can change the whole look of the dress from casual to dressed up. The belt needs to be quality so it does not look like an afterthought. These belted knee length dresses prove that one accessory detail in the right place changes the entire outfit.