You can also use the options, right click, square button, or button where the square button would be on a different type of controller other than a PS3/PS4 controller, for the piece of gear and find "Display Gear Set". If "Display Gear Set" is available for a piece of gear that means it's part of one of your saved gear sets. "Display Gear Set" will not be available for gear that is not part of a saved gear set. I hope this helps you out!