I recently discovered the Arc'tyrex Quiver Pack (can't do links) on the net and was wandering if anyone had used or seen one. I can't find it in my area to look at but I really like that it's hydration compatible, looks like it could fend off some weather and it's sling style.

I just need enough space for a few small items. I enjoy walking in good or bad, but not dangerous, weather so water resistance is a consideration. Any thoughts?