I don't mean to call out the OP but I have to wonder how are you so sure that the foreign bike shorts are so much of a better fit for you (just like all Americans are not the same size/shape, I feel pretty sure that not all Japanese people share the same proportions either) and of better quality than the stuff here in the US if you've never even worn bike shorts before? Not trying to hate, just trying to understand why you need these exact (and obviously difficult to find) shorts if you haven't even tried the local offerings yet?