WindWalker Insignia

Does it stack? if I get 2 of them does that mean I can get +80 armor if I have 4 enchants on?

The effects of the insignia apply to ONLY the piece of armor it is on. That being said, the +5 armor bonus DOES add up, based upon the # of enchantments on you:

# of enchantments | total armor bonus
1...........................+5
2...........................+10
3...........................+15
4...........................+20

Basic Guild Wars Mechanics... Each individual armor piece has a chance of being hit. Armor levels are not added together, but rather counted when an individual piece gets hit. Two would mean you have +20 armor on two separate armor pieces.

Wait what? I never knew that we get hit in different parts do different damage o_O; Since we are at it, someone mind explaining how the hit system works? I'm lost now D:

Here are the chances of different body parts being hit in combat:

Head 12.5%
Torso 37.5%
Legs 25.0%
Hands 12.5%
Feet 12.5%

It only does different damage if you have different armour on those parts.