Why does it show up on stuff that has lower damage/armor rating than what I already have equipped? Also, I'm looking at a shop now that has a briastplate that is higher armor rating than what I'm wearing and there is no triangle next to it. I'm baffled.
Here is the screenshot of the briastplate.
http://www.neoncranium.com/triangle3.jpg
See the armor rating 26(+27) I'm pretty sure the triangle is just telling you that it's (+xx).
I've checked my inventory and everything that has (+xx) in the armor rating has the triangle.
It may have to do with perks, because I took the juggernaut perk for heavy armor, and my pieces of heavy armor have the triangle. Not sure if it was there before taking the perk.