Replying to Do you think that dying boots can affect the boots ?

I just want to know if the boiling of water could affect the plastic and the boots could no more fit me feet..

i have those boots (yeah i know racer boots but this is what happens when the 31.5 fulltilt are too small)

and i want to dye them to black !

Do you think that everything will turn black ? this is want want..

And do you think that they grey part on the side and on the top will turn black too ?

THANKS !