Reach for a black fleece zip sweater and charcoal jeans to achieve an interesting and current laid-back ensemble. Want to dial it down in the footwear department? Complement this ensemble with a pair of grey athletic shoes for the day. This one is a nice option when it comes to a kick-ass summer-to-fall getup. Gentlemen who wonder how to rock modern casual outfits in your 30s, this ensemble should answer your question.