Flaunt your chops in menswear styling by opting for this laid-back combination of a field jacket and black jeans. Low top sneakers are a welcome addition for this getup. Classic and casual getups for stylish 20-something gents aren't actually that hard, as you can see here.
To look like a sharp gentleman at all times, make a field jacket and a navy suit your outfit choice. To give your overall ensemble a more casual vibe, complement your look with low top sneakers. As you're moving from your 20s to your 30s, you want to start dressing more professionally. In this case, outfits like this are ideal as inspiration.