It is waterproof, and it was purchased for that purpose, but it leaves stains wherever it touches, which do not come off even with washing or scrubbing. I would not recommend it nor would I buy it if I had this information.

On one hand, it does perfectly what you buy it for, that is, it protects from rain and wind; on the other hand, it has style and quality that make it stand out light-years away from classic waterproof "bags." It covers up to just above the knee (Height 1.82, size L).