This casual combo of a grey crew-neck sweater and grey chinos is a safe bet when you need to look laid-back and cool but have zero time. For a more relaxed take, rock a pair of grey suede low top sneakers. This ensemble is a viable option when it comes to a knockout ensemble that will take you from summer to fall. And if we're talking casual dressing ideas for men over 30, this look looks nice on almost any man.