I need a good water proof Bivy that is as light as possible. Web searches havn't helped me much so im asking here. Ill will be useing the bivy snow, rain, and shine. The bivy needs to be as light as possible with a durable bottom. I have a budget of around $100. Please place your suggestions and links to the site where I can buy it. I also your request that your suggestions are not a poncho bivy mix or a bug net.
-Nate-