K
Kathy Koo I have the japanese fiber ones too but then I dyed my hair so I got these to dye it to my hair color. In comparison, they are a lot more expensive but quite similar. The quality is very similar and I can't tell them much apart besides the color. I'd say the only difference is that you can dye these and they are slightly more frizzy than the japanese fiber but that can be solved with straightener or curler