This pairing of a blue chambray short sleeve shirt and beige chinos is a great look for off duty. If you're on the fence about how to round off, complete your look with a pair of dark brown leather boat shoes. When you're having one of those dreary autumn days, sometimes only a killer outfit like this one can spice it up. Those wondering how to pull off modern casual outfits as you go into your 30s, this combo should answer your question.