ladder proof

/ˈlædər pruːf/
adjective
  1. Describes a fabric or knitted item that is designed not to develop ladders (runs) when a thread is broken or pulled.
    • These ladder-proof socks last much longer than regular ones.
    • She bought ladder-proof stockings for the job interview.
    • The label says the sweater is ladder-proof, so you don't have to worry about snags.
What does "ladder proof" mean? | whatsthatwordmean | whatsthatwordmean