This laid-back pairing of a navy short sleeve shirt and teal chinos is a fail-safe option when you need to look casually stylish in a flash. When it comes to shoes, this outfit is rounded off brilliantly with low top sneakers. As you can see here, it's super easy to look sharp and stay toasty when chillier weather comes, all thanks to looks like this one. Ideal if you're scouting for some incredibly inspiring style for gents in their 30s.