What characteristic does a vertical line provide to an outfit?

A vertical line is known for its ability to elongate and create an illusion of height in an outfit. This is because vertical lines draw the eye upward, guiding the viewer's gaze along the length of the body. As a result, they can help to create a more statuesque appearance, making the wearer seem taller and giving a sleek, streamlined effect to the overall silhouette. This characteristic is particularly beneficial in fashion, where maximizing height and creating elegant proportions are often desired.

In contrast, adding width or introducing a casual vibe are effects associated with different line orientations. For instance, horizontal lines tend to make an outfit appear wider, which is a different visual effect altogether. Similarly, a softening effect can often be related to curves or softer lines rather than straight, vertical ones.