This pairing of a dark brown blazer and grey jeans is perfect when you need to look on-trend in a flash. For footwear, go down the casual route with a pair of white athletic shoes. Those who are curious how to pull off cool off-duty outfits as you get into your 30s, you have your answer.
Marry a dark brown blazer with grey jeans for a dapper combination. A fail-safe option combination proper for 30-year-old gents who like casual dressing.
If you gravitate towards off-duty looks, why not try pairing a dark brown blazer with grey jeans? Brown leather brogues will give an extra dose of polish to an otherwise mostly dressed-down look. Guys who wonder how to sport cool off-duty looks as you mature into your 30s, this combo should answer your question.