Go for a simple but elegant choice by opting for a blue overcoat and chinos. As for the shoes, you could follow the casual route with athletic shoes. Casual combos for guys in their thirties aren't actually that hard, as you can see.
Chinos with Athletic Shoes Cold Weather Outfits In Their 30s
A dark green parka and chinos are the ideal way to inject subtle dapperness into your casual fashion mix. Athletic shoes will bring a carefree touch to an otherwise standard look. This pairing demonstrates that in your thirties you have a wide array of style options.
Wear a black overcoat and chinos to put together an effortlessly sleek and modern-looking outfit. You can take a more casual approach with shoes and add a pair of athletic shoes. As a gentleman in his thirties, you'll like this ensemble.
Go for a simple but seriously stylish outfit marrying a blue overcoat and chinos. Take an otherwise dressy ensemble in a more relaxed direction by finishing with a pair of athletic shoes. A good, less conservative ensemble for a gentleman over 30.
For a casually sleek look, make a dark brown overcoat and chinos your outfit choice — these two items work pretty good together. Puzzled as to how to finish? Introduce a pair of athletic shoes to the mix to mix things up a bit. A fail-safe option getup proper for men in their 30s.