Programable Led + Optical fiber connectors (2020) 

 When you want to integrate  lighting source with fashion product,  you definitely  need fabric interface to stiwtch.  This programable led ribbon make able u to easy stitch on your any soft material.  Inaddition, It is neopixel led which is able to progamable with arduino. 

with the lighting led, If u want to combine with optical fiber you could combine flexible connectors .