A tank and brown chinos are the perfect way to infuse extra cool into your off-duty fashion mix. To give this outfit a more elegant finish, why not introduce a pair of black leather chelsea boots to this getup? As the weather starts to improve, it's time to shed those bulky winter clothes and opt for an outfit that's lighter, like this one here. As a gentleman in his 30s, you probably want to start dressing maturely. If that's the case, combinations like this are a real lifesaver.