thanks this is a great idea - I discovered this last summer... This really does work - I had to keep an icepack in my bag to keep my emergency protein bar from

thanks this is a great idea - I discovered this last summer... This really does work - I had to keep an icepack in my bag to keep my emergency protein bar from melting on my all day bike rides and I realized how much cooler I was from just that tiny bit - but then I have the condensation issue.