Such must-haves as a dark brown blazer and white chinos are the perfect way to introduce some masculine refinement into your daily off-duty wardrobe. Finish off with black leather tassel loafers to instantly change up the outfit. You actually can remain cool yet pulled-together under the unbearable heat, and this outfit is a vivid example of just that As a 30-something gentleman, you probably want to start dressing like a grown-up. In this case, ensembles like this prove useful as a source of inspiration.