All wanting to check some feedback on an idea I have if any have knowledge or opinion please let me know or contact me through my webpage. http://home.earthlink.net/~skysappr/skysapprsultralightbackpacking/index.html I am thinking about making two hydration bladder sleeves from a space blanket. Does anyone have an opinion if it matters if the reflective side is out to obviously reflect the sun and UV radiation or if the Olive green side is visible. I am making this a sewing project since my bladders ride in my main mesh pocket of my pack. skysappr