A navy cardigan and navy jeans are essential in any modern gent's well-edited casual sartorial collection. Make a bit more effort now and choose a pair of dark brown leather casual boots. As you're moving from your 20s to your 30s, you want to start dressing like an adult. In this case, outfits like this are ideal as inspo.
Extremely dapper and comfortable, this casual combination of a navy cardigan and navy check chinos will provide you with variety. Why not take a classic approach with shoes and introduce a pair of dark brown leather casual boots to the mix? Outfit inspiration like this will help you remain enviously fashionable as you make your way through your 20s.