Science fiction has popularized a few clothing ideas that haven't quite become a reality. (For instance, fabrics made of a spider-silk-like fiber that are super tough but light.) Sometimes the laws of physics doesn't quite allow for magical fabrics that can make things invisible/impenetrable/etc. Real advanced fabric technologies are improving all the time, though, and making some pretty cool clothes -- even if they're not economically practical. Here are just a few examples.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post