This casual combo of a tan long sleeve shirt and white jeans is super easy to pull together in no time, helping you look awesome and ready for anything without spending a ton of time going through your wardrobe. Now all you need is a cool pair of brown canvas low top sneakers to finish off your outfit. As a 30-year-old gent, you probably want to start dressing like a grown-up. In this case, inspiration like this proves very useful.