Black straight pants can effectively modify the figure and make it look more slender and slender. Black is a visually convergent color, which can focus people's attention on the whole, not the part. The design of straight pants can balance the body proportion and avoid protruding the width of hips or thighs. Choosing straight pants with high waist style can improve the waistline and lengthen the visual effect of legs. Matching a suitable coat, such as choosing a loose coat or a long coat to cover some hips and thighs, can further emphasize the waistline and lengthen the figure.