I was thinking of that quality of foam, in 5 or more years.
I know that some foams, microphone wind covers, hockey and bicycle helmets, and other soft foams, used to make the helmets a perfect fit, deteriorate over the years.
We have a few of their handgun cases, and the guns are wrapped in thick cotton fabric.
House temp is kept at 77-78 degrees.
Closed cell foam, of high quality, that we use in the marine trades, some are three decades old, and still just fine.
I did buy one of the rifle cases last week.
Thank you OP.
Needed something to hold the scoped 6920s, as my
wheel bow soft case, gets comments like, hello Mr. Hood.

Some ranges want everything in a case, some do not.