Alec Kulbacki wrote a question about MSR AC Bivy on January 14, 2012
In terms of images and reviews, it seems that the information on this Bivy is rather limited. I understand that in terms of the materials used, this is "waterproof." However, the only single image that I can find online shows the exposed mesh area towards the shoulder area. I am looking for a four season (or at least fall winter spring) bivy that can handle all weather conditions. Does this feature allow water to pour right in, making it rather useless without a rain fly as the image suggests, or is there some sort of cover for the mesh area?