There are a variety of chests you can obtain in Sins of a Dark Age.
Chests That Require Key
Hardened Vanguard Chest (Requires Vanguard Chest Key.)
Rugged Vanguard Chest (Requires Vanguard Chest Key.)
Sturdy Vanguard Chest (Requires Vanguard Chest Key.)
Chests That Do Not Require Key
Chests Granted with Early Access Bundle
Chests Granted with Fellowship Bundle Program
Hero Gear
Traveling Chest is not actually a chest but a piece of Hero Gear.