Yes, and it's more sensible than to be just a decoration. At least I've always thought that almost everything these killers wear is some purpose - well, maybe not the skulls and stuff, but that netting would be just a obstacle if it wouldn't have any purpose.
But maybe it helps the cloaking as well. I mean it's somehow electric 'cos of the heating? Well, this is only my own thoughts, though.
I haven't read any of the books so I'm glad we have wiser ones in here.
-The softer side of clan Balatu - Yeah right, IN YOUR DREAMS lol-