Umbrellas already aren’t too great in the wind. So I imagine that any wind that would make this completely unusable would also negate the use of an umbrella, and any wind that one could use an umbrella but still fave sideways rain, would be exactly what this is designed for. I would further guess that there is a level at which winds are not so severe as to prohibit the use of umbrellas, but are above the upper threshold for this design to function optimally, it likely begins to cling to the body making movement more difficult and reducing but not advantages in protection from sideways rain or splash over, with the lower body being most vulnerable to additional wetness. This wetness however is unlikely to exceed how wet one would become in identical conditions without the curtain.
For one, I would end up tripping over the thing, but add to that the fact I live in a desert valley with serious wind storms, this would just end badly all around
true, i held one in, during a church conference (i was invited), turned white, tried to walk, crashed, and had everyone looking at me, mind you, i just let em rip now regardless where i am
Can cause discomfort otherwise