I've always thought about it as such, in my head, it made more sense, than say, protective clothing. Didn't mean to insist, apologies if it sounded that way. And..saw it here
View attachment 130787
AVP Wikia (
http://avp.wikia.com/wiki/Yautja_(Predator)) states this:
'Another common piece of Yautja clothing is a heated wire mesh undersuit with temperature control elements to help the Predator adapt to the harshest of cold environments.[13] Other items, such as the...'
Yautjaencyclopedia (
http://yautjaencyclope.altervista.org/armor.html), under Hunter padding, has this to say as well..
The padding is a basic mesh that does not offer much more protection to the thick hide of the Hunters already. Most are designed as armored jump suits meant for casual wear in the corridors of their dark vessels. This is the closest they get to flight suits. This provides electric-generated warmth, keeping the Yautja warm even at -50 degrees Celsius. A component of the camouflage device's circuitry allows cloaking of un-armoured body parts.
So yeah, lots of different uses, and from a technical stand point and lore wise, no one really knows.. ;P