Probably the male equivalent of a push-up bra.
Society does tend to favor taller men... there are also other desirable physical attributes e.g. a large chest, masculine jawline. It's not just about sexual attraction, but they also open up more opportunities professionally.
For attracting the opposite sex, the ideal man-woman couple follows the Golden Height Ratio of 1:1.09. If the man is 1.76m tall, ideally the woman is 1.61m tall.
On the flip side, freakishly tall girls (about 1.80m and above) are very lonely and have a low self-esteem. Especially those tall and leggy model-like girls.