Has shown me no function ...

I had in February, so in midsummer, in the northeast of Brazil. Upon arrival at the hotel the pocket nicely done wet, according to guide the "crystals" a little spread.
Then taken out after some time and sent to the order-bag.
The next day, hundreds of kilometers driven, but it was cool in the pocket never.

OK, soaked in the morning again, this time lie had no Umtasche so the moisture can evaporate better (ambient temperature 30-35 °): Nix - No tangible cold.

So wrong I can not really be made, but I have absolutely not noticed a cooling function.
After 2 weeks I got my driving saves on the return flight and thrown the part in the garbage.

As so many others describe how great would cool this bag I am very disappointed that it did not work with me ...