An interesting idea, but it only seems to protect the head and shoulders. I'd expect water to run along the surface of the device onto the pants of the user, e

An interesting idea, but it only seems to protect the head and shoulders. I'd expect water to run along the surface of the device onto the pants of the user, effectively making them wetter than if they had no protection at all. An umbrella at least mostly routes the water onto the ground. It also looks more awkward to use in a crowd than an umbrella.