> Water is trapped inside so basically this umbrella is a cup. How? It looks like the opening is opposite the handle, so assuming people are holding their umbr

> Water is trapped inside so basically this umbrella is a cup. How? It looks like the opening is opposite the handle, so assuming people are holding their umbrellas by the handle, any water on the umbrella would just gradually slide to the ground, just as if the umbrella were the normal sort.