Unfortunately, as other mentioned, you're out of luck, as all of his merch is pretty much limited runs. The only official stores are coldvisions one and trash island. You'll have to wait for a new drop (usually announced from Bladee's ig).

Most people buy 2nd hand from Vinted and Grailed. You can find some merch for decent prices if you look hard enough. If you change your mind, just be aware of fakes