To create a casual getup with a twist, rock a v-neck t-shirt with black ripped jeans. Elevate your getup with a pair of dark brown chelsea boots. Off-duty combos for 30-year-old men aren't actually that hard, as you can see here.
Dark Brown Chelsea Boots with V-neck T-shirt Casual Warm Weather Outfits For Men In Their 30s
If you don't like spending too much time on your ensembles, wear a v-neck t-shirt with navy jeans. A pair of dark brown chelsea boots easily steps up the wow factor of any getup. This pairing shows that as a 30-something gent, you have a wide range of dressing options.