A grey sweatshirt and beige chinos paired together are the perfect ensemble for gents who prefer casual looks. If not sure about what to wear in the shoe department, go with a pair of white leather low top sneakers. Keep this combination in your head when spring comes, and we guarantee you'll save a lot of time trying to pick out what to wear on more than one morning. As you're heading into your 30s, you probably want to start dressing like an adult man. In this case, combinations like this are a safe option.