I use the camelbak on my motorcycle. It is big enough to hold an 18 oz Klean Kanteen aluminum bottle with its own neoprene bottle tote, to provide double insulation. Could be even more versatile if the horizontal straps came apart for different mounting possibilities.
Pros: Well made, good insulation, versatile applications
Cons: Wish the horizontal straps came apart/fastened (eg velcro)
This review was written in the old system and had content requirements that are different than reviews written today.