what you are made of

show (someone) what (one's) made of

To demonstrate one's true talent, fortitude, ability, courage, or worth (to someone). No one thinks you stand a chance in this match, but you go out there and show them what you're made of! This could be the biggest trial of my career. Time to go show what I'm made of!
See also: made, of, show, what

what (one) is made of

One's true talent, fortitude, ability, courage, or worth, especially in the face of adversity or difficulty. No one thinks you stand a chance in this match, but you go out there and let them see what you're made of! This could be the biggest trial of my career. Time to go show what I'm made of!
See also: made, of, what
Farlex Dictionary of Idioms.

what you are made of

your true abilities or qualities.
See also: made, of, what
Farlex Partner Idioms Dictionary
See also:
  • show (someone) what (one's) made of
  • what (one) is made of
  • what somebody is made of
  • courage
  • courage of (one's) convictions
  • conviction
  • stand tall
  • give (one) a run for (one's) money
  • give someone a run for their money
  • give someone or something a run for their money