Need advice : Cool temperature bag for card transportation

[G1911]

I think it would depend on the cards. T cards can curl a bit if left in a very hot environment for too long. I don't think there's any actual danger leaving them in a hot car for 10 hours (besides the security risk). Cardboard is fairly resilient to most environmental factors besides moisture.

[JollyElm]

Here's another suggestion. If your collection is comprised of 'normal' year cards like, say, 1950's through 1970's stuff, try keeping a bunch of throwaway cards (cheap commons, etc.,) from those same years outside and/or in your car (in the shade, heavily protected or not, depending on what you want to do) for periods of time, and see what time, heat, weather, humidity, etc., does to them, and then you will be able to know how those factors affect your cardboard gold.

[bigfanNY]

I spent 2 long hot summers in Florida and one thing I picked up on was insulated soft sided bags. If I was going to shop in the afternoon I needed them for anything cold. Come in many shapes and sizes. Got one with Grogu on the side to bring lunch for 2 when I vist beach. Lots of ways to use them. I know they have to be all over LV.
Jonathan

[drcy]

Humidity with the heat is probably the worst. I assume Las Vegas is dry, so that's good.