>>11188391Perfectly serviceable if you don't live/store them in an extreme climate and don't treat it like a red-headed step child. My oldest phicen out of the 50 or so I own is 7 years old and still in perfect condition. That is silicone though.
That soldier boy pic above is trash, and probably a relic lost to time. I have no idea what it is made of. Looks like some kind of rubber. I stay away from semi seamless as well because most of those are rubber or trash vinyl.