Am I just losing my damned mind?

Every now and then someone produces for me a link from nowhere, that takes me exactly where I want to go. Without such miraculous help, I try searching online and attempting to navigate Square-Enix's online store with all the success of a man trying to find his ideal jacket in a warehouse that deals in everything but categorizes nothing, except by saying "This zip code in the warehouse goes to this Final Fantasy, while the other zip codes go to something else, I guess".

Could someone please help me out? How am I meant to get to exclusively XIV-themed merchandise without going through a third-party retail outlet?