The Armorer can create new armor

The Armorer can create new armor out of raw materials you've found or salvaged, such as shells, hides, ingots, or slabs of rock.. [Armor] will appear after the name of armor crafters. Remember to salvage your old armor with an Expert Salvage Kit if it has runes on it; often you will manage to retrieve your runes and for use on your new armor. Even if you don't get the runes back, you will get materials you'll likely need for the new set of armor. http://www.guildwars.com/gameplay/exploring/townlandscape/