For a smart look, try teaming an olive blazer with blue jeans — these pieces fit nicely together. You could perhaps get a little creative on the shoe front and complement your outfit with brown leather double monks. This is a vivid example of how to dress well as you reach your 30s.
Olive Blazer with Blue Jeans Outfits For Men In Their 30s
This combination of an olive blazer and blue jeans strikes an interesting balance between dressy and casual. You know how to give an air of polish to this look: brown leather chelsea boots. As a 30-year-old gentleman, you want to start dressing more professionally. In this case, ensembles like this are ideal as inspiration.