Marrying a grey cardigan with dress pants is a nice option for a sharp and classy ensemble. Balance out your ensemble with a more casual kind of footwear, such as these white leather low top sneakers. In your 30s, you want to start dressing maturely. That's when combinations like this are a surefire option.
A grey cardigan and dress pants are a seriously dapper combo to try. For something more on the daring side to finish your outfit, complete this outfit with dark brown leather desert boots. Style like this is what eventually will earn you trust and respect from your peers.
Team a grey cardigan with dress pants if you're aiming for a clean, sharp getup. As a 30-year-old man, you want to start dressing more professionally. If that's the case, inspiration like this comes in very useful.