I've had a lot of trouble with the mesh water bottle pockets. On my previous model of the Red Cloud, the mesh started ripping pretty soon after I bought the pack, and didn't really survive a summer of backpacking. Kelty has since replaced that pack with their new model of the Red Cloud (very nice of them!), but their mesh pockets are now sewn in half, rendering them useless to me since I can't fit a nalgene in them. I ended up taking a seam ripper to them so that I could actually fit a nalgene, but now the mesh is already coming apart. Very irritating. One of my few major complaints about this pack. It is a significant one though, I've long wished kelty would move away from the mesh