An olive long sleeve shirt and brown chinos are a good combo to have in your casual collection. Go off the beaten track and switch up your outfit by rounding off with a pair of dark brown leather casual boots. Certainly a popular option when it comes to dressing ideas for 30-something Millennial guys.
Why not wear an olive long sleeve shirt with brown chinos? Both pieces are very functional and look nice when married together. Introduce brown leather derby shoes to the equation to instantly up the classy factor of your ensemble. As you head into your 30s, you probably want to start dressing more like a mature gentleman. In this case, looks like this are ideal as inspo.