Players can view their Collection by pressing [Y] in the game. This brings up the Collections menu, which shows what things the player has unlocked and has yet to unlock.
Players can view their Badges, Mounts, Styles, Tomes, Allies, Boats, Sails, Flasks, Emblems, and other equipment here. They can change their equipment through this menu by clicking on an unselected item in a category, or unequip by clicking on the currently equipped piece.
This menu also shows progress towards unlocking badges and rewards for receiving that badge.