What is the context? I can't think of a place to use "the chair is modeled on you".
Interested in Language
Instead of "something is modelled on you" (for example a chair, or shoe...), can I also say: "something is shaped on you"?
José Manuel Rosón Bravo
It is moulded to your body/shape.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.