Teaming a waistcoat with jeans is a savvy idea for an effortlessly neat outfit. Balance out this look with a sleeker kind of shoes, like this pair of brown leather derby shoes. As a 30-year-old man, you probably want to start dressing like a grown-up. That's when outfits like this become a great source of inspiration.
Jeans with Waistcoat Warm Weather Outfits In Their 30s
This combination of a waistcoat and jeans couldn't possibly come across as anything other than seriously sharp and effortlessly smart. Now that's how you do smart casual in your 30s.