для своих лет

for his/her age

→ для
phrase Rare #42,962
for his/her age Used to say that someone is doing or looking unusually well considering their age. The pronoun changes according to the person: для своих лет is commonly used when the subject is male or female.
RU: Она очень энергичная для своих лет.
EN: She is very energetic for her age.