hi jele!!! not sure in hongkong but in the Phils i'm a distributor, i'll c if i can find some site that you can check... if not i'll be back in hk on thurs then back in the Phils on saturday i'll keep in touch. here's my email emp_skill@hotmail.com then i'll be back in hk mid-november. send me your details via email so that i'll know your size or maybe we can even meet for a coffee since i don't work in hk i have lots of free time on weekdays.
Don't know what your cup size is, but in the Esprit Stock (on HanKow Road in TST), dowstairs, they have some (model & sizes changes all the time) bras, wome of which are not padded (but still a bit "hard") for C-cups : never had anything but flimsy textile stuff usually, but out of despair bought one without the heavy padding one (a simple white one for less than 80 HKD) and t did the job and didn't add too much bulk to my breasts.
I now go there (make sure you get yr size - mesure yourself- before going there as underwear cannot be tried on)