NOT WATERPROOF. Which is why Im giving it 3 stars. I bought this particular shade because in the question area someone 
answered that it was waterproof. If it rains, it will go through the shade. Its waterproof in the sense that its not a fabric that absorbs water. I like how big it is though and I like that it can be easily unhooked to take down for a storm. 
I used eyelets and S hooks to attach. Way cheaper than buying the actual sun shade hardware.