A long sleeve t-shirt and chinos are the kind of a foolproof casual combo that you so awfully need when you have zero time to plan out an outfit. White canvas low top sneakers look awesome here. So if you're looking for a great but also age-appropriate combination, look no further.
For a relaxed casual ensemble with a modern finish, consider teaming a long sleeve t-shirt with chinos. Complement this ensemble with tan canvas low top sneakers and ta-da: this look is complete. This combo is a practical illustration middle-aged guys can very well slay in the fashion department.