As a Canadian it is almost always cheaper for me to order directly from Japan than to get the same item from the US.That Im not sure. I'm US-based and can only advise on the market for that jacket here.
Having purchased goods from Japan post-tariffs, I can tell you that the shipping prices (time two: one for domestic Japan and then Japan-to-US shipping) make all but a really good deal cost-prohibitive with the tariffs.
There are supposed to be tariff carve-outs for made in USA goods being repatriated, but that sounds like a hassle and not worth the time to contact the Japanese shipper.


