Want to infuse your wardrobe with some elegant dapperness? Pair a long sleeve t-shirt with charcoal wool chinos. To add a bit of zing to your ensemble, introduce a pair of black loafers to the mix. So if you're on the lookout for a look that's stylish but also feels totally spring-friendly, this one fits the bill. When it comes to outfit ideas for 30-something guys, this ensemble looks nice on most gentlemen.