Hi All,
I have a down sleeping bag, it's pretty light at 1kg and hence doesn't have the greatest amount of fill (model: Kathmandu Columbus, 650/fill).
I've hardly used it but some of the baffles are near empty. It appears that they've been designed this way, no leakage, and at night some areas of my body have literally two layers of nylon as insulation. The bag is rated to -2c comfort but no chance!
What do you think, is it bad baffle design, lack of feathers in general, or just bad fill? Some parts of the bag are certainly filled more than others, it appears to be just random.
I've included a picture of one of the culprits positioned just before my neck on upper side. No feathers are clumped and the little there is in that baffle at the bottom left are minimal (photo makes it looked clumped)
Thanks!
Andrew
http://www.igaro.com/misc/DSC00608.JPG