Yes it was. Pumps in the feet soles generated the energy needed to operate the suits as the wearer walked............
I did not recall that, but it is nonsense. It requires the body to generate the power necessary to cool the body.
But, by the law of entropy, that is impossible.
The body would automatically generate more waste heat than it was capable of removing, because it would be using muscle power to run the pumps.
You have to dump the waste heat somehow.
Maybe that escaped my memory as well. Was there some sort of magic material to dump the heat to the atmosphere? Did the book mention the temperature?
I am sure others will check my logic here.