This may help with a drizzle until you can get inside but its not for LONG periods of time in damp or wet conditions
I like this product and would recommend to my friends
It works well, blocks rain but doubt it would in heavy downpour
(Note: I really didn't get a chance to use it in heavy rain)
I used on a rainy day, and work it very well!!!!!
Installation is quick and easy, also easy to fold and keep in your pocket