(as) tough as old boots

US /əz tʌf əz oʊld buːts/
UK /əz tʌf əz oʊld buːts/
"(as) tough as old boots" picture
1.

zäh wie Leder, hart im Nehmen

very strong and able to deal with difficult situations

:
My grandmother is 90 years old and still (as) tough as old boots.
Meine Großmutter ist 90 Jahre alt und immer noch (so) zäh wie Leder.
You need to be (as) tough as old boots to survive in this industry.
Man muss (so) zäh wie Leder sein, um in dieser Branche zu überleben.