A cardigan and black chinos are an easy way to introduce extra cool into your day-to-day casual lineup. Black and white slip-on sneakers will pull your whole ensemble together. As you move into your 30s, you want to start dressing maturely. In this case, ensembles like this are perfect as inspo.
This combo of a cardigan and a navy vertical striped dress shirt is a goofproof option when you need to look on-trend in a flash. If you don't want to go all out formal, introduce black and white slip-on sneakers to this outfit. So if you need fashion tips on how to dress as you pass the big three-oh, this getup is an amazing example.