What are the functions of the reverse umbrella?

It is the same as the ordinary umbrella, except that it is reversed to collect, the wet umbrella cloth wrapped inside, is a new umbrella product launched in recent years, a small space can be opened, in addition, the reverse umbrella is also a windproof design, double-layer umbrella cloth, strong winds can be diffused from the umbrella between the surface of the umbrella to the surrounding area, which can effectively reduce the wind speed, and then to achieve the windproof effect.