This ensemble clearly illustrates that it pays to invest in such menswear must-haves as a blue vertical striped double breasted blazer and white chinos. A trendy pair of brown leather desert boots is an easy way to add a confident kick to the getup. As you're transitioning from your 20s to your 30s, you want to start dressing like an adult man. If that's the case, ensembles like this are ideal as inspo.