Vero water bottles are actually glass; not metal. They also have a plastic version for around pools. Neither will fit in my pocket like current water bottles do. One week cruise no problem; they will sanitize bottles between guests. Longer cruise I would like them to be sanitized somewhat frequently. Fine idea for restaurants and lounges to not use small or large "purchased" bottles; I am not so sure for guests. I just wish they could offer alternative; I have never liked the Silversea bottles so I have substituted other beverages for water; not necessarily a smart decision.

Marc