Choose a black sweatshirt and navy jeans to get a modern casual and stylish outfit. Change up this look with a sleeker kind of footwear, such as these dark brown suede chelsea boots. Those who are curious how to wear modern casual style as you reach your 30s, this ensemble should answer your question.
This outfit with a black sweatshirt and navy jeans isn't so hard to pull off and is easy to adapt. When not sure about the footwear, make navy leather low top sneakers your footwear choice. And if we're talking casualwear for men in their thirties, this getup looks cool on almost anyone.