For a laid-back and cool outfit, go for a white short sleeve shirt and white chinos — these two items fit really great together. You could perhaps get a bit experimental in the shoe department and tone down your getup by finishing off with a pair of white canvas high top sneakers. This look is probably what you've been looking for as a gentleman in his thirties.
White Short Sleeve Shirt with White Canvas High Top Sneakers Smart Casual Outfits For Men In Their 30s
This is undeniable proof that a white short sleeve shirt and brown chinos look awesome when combined together in an off-duty ensemble. Make your ensemble more practical by finishing with a pair of white canvas high top sneakers. So if you need outfit inspiration for dressing as you head into your 30s, this getup is ideal.