These black covers pull over the filters to keep out large debri and are supposedly water repellent. I bought these mainly in case I get caught in the rain. The fit and finish is good. The quality is good too. I would recommend these.
I'm a big S&S fan so I understand I am paying for the name more than anything else. This protector is flimsy at best and is water repellant at best but certainly not water proof. That being said, go in knowing that what you are paying for is the cool S&S logo silk-screened onto a sock-like cover and be happy with that.