After some consideration, are they possibly related to the new camp mechanics? Maybe they allow full rest with limited supplies? Not sure if I want to bother checking that.
Nope.
I had them equipped and i still needed the same amount of food.
Another idea:
Maybe they are water resistant? :P
Astarion would appreciate such boots for sure ... anyone tryed?
//Edit:
Nope ... running water still burns like acid.
