A dark brown short sleeve shirt and black ripped skinny jeans married together are the ideal outfit for gents who appreciate relaxed casual combinations. Bring a touch of elegance to your ensemble by finishing off with a pair of low top sneakers. So if it's a summertime day and you want to look dapper without exerting much effort, this look will do the job in no time. This ensemble should clear any doubts you had about dressing casually as a 30-something man.