I want someone to engineer a fabric / fibre that grows with each wash rather than shrinks. I feel like with modern materials science it must be possible. I'd u

I want someone to engineer a fabric / fibre that grows with each wash rather than shrinks. I feel like with modern materials science it must be possible. I'd use it for children's clothes. After you wash the clothes, you wait for the kid to grow a bit before they wear it again. No more growing out of your favourite things.