You can look amazing without trying too hard in a yellow vertical striped short sleeve shirt and navy jeans. A pair of white canvas low top sneakers is a smart option to complete your look. As you see here, as a gentleman in his 30s, you have a wide array of styling options.
Yellow Vertical Striped Short Sleeve Shirt with White Canvas Low Top Sneakers Outfits For Men In Their 30s
A yellow vertical striped short sleeve shirt and olive chinos are essential in any modern man's functional casual sartorial arsenal. If in doubt as to the footwear, stick to a pair of white canvas low top sneakers. Dressier looks like this work well on 30-year-olds.