For a look that's worthy of a modern fashionable gent and casually classic, choose a sweater vest and blue chinos. Black leather low top sneakers are an easy way to give a hint of stylish casualness to your look. A no-brainer for young guys after a more mature look.
For an effortlessly classic getup, pair a sweater vest with blue chinos — these two items work really well together. Rounding off with black leather chelsea boots is a guaranteed way to add a bit of zing to your look. As you're moving through your late 20s, you probably want to start dressing more professionally. In this case, looks like this become a great source of inspiration.
For a look that's effortlessly smart and GQ-worthy, team a sweater vest with blue chinos. Tone down the casualness of this outfit by finishing off with black leather derby shoes. Style like this is what at the end of the day will gain you respect from people around you.