For an ensemble that's street-style-worthy and effortlessly smart, pair an aquamarine shirt jacket with a turtleneck. For something more on the dressier end to complement your look, complete your ensemble with a pair of black leather loafers. Overall, a great example of Millennial style.
Aquamarine Shirt Jacket with Turtleneck Smart Casual Warm Weather Outfits For Men In Their 30s
So as you can see, it doesn't require that much effort for a man to look seriously stylish. Just go for an aquamarine shirt jacket and a turtleneck and be sure you'll look awesome. If you wish to effortlessly elevate your ensemble with one item, why not complete this outfit with brown woven leather loafers? A good illustration of how to dress fashionably as you turn 30.