As far as water bottles go, I use a simle trick well used in the army; I tie a piece of 550 cord to the bottle. That way, if it falls out, it gets dragged, instead of lost.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.