Here's a new general warehouse thread
Official Website:
http://www.ware-house.co.jp/index.php?page=index
Other warehouse threads:
http://www.superfuture.com/supertalk/showthread.php?t=3682
1001xx
http://www.superfuture.com/supertalk/showthread.php?t=20313
1000xx
http://www.superfuture.com/supertalk/showthread.php?t=24528
Do the 50s also use this new Warehouse denim?
edit: just saw they don't.
Here is another shop with the 46, size 31 or for you? https://www.e-cream.jp/item/WHS1001XX-25-NONWASH/