in nick

in good/poor/etc. nick

In a certain condition, as specified by the adjective used before "nick." Can be used to refer to the physical condition of something or to someone's health. Primarily heard in UK. Our local football club has struggled in the last few years. We don't get many new players, and our pitch has been in poor nick for as long as I can remember. He had a long road to recovery after the surgery, but he's in good nick now.
See also: good, nick, poor
Farlex Dictionary of Idioms.

in — nick

in a specified condition. British informal
1997 Ian Rankin Black & Blue Don't be fooled by the wheezing old pensioner routine. Eve's around fifty, still in good nick.
See also: nick
Farlex Partner Idioms Dictionary
See also:
  • in good, bad, etc. nick
  • in good/poor/etc. nick
  • be in the pink of condition
  • get into the pink of condition
  • in the pink
  • mint condition, in
  • in mint condition
  • be in mint condition
  • mint
  • in an interesting condition