A blue long sleeve shirt and black jeans are among the fundamental pieces in any modern gent's functional casual closet. And if you need to instantly level up your getup with a pair of shoes, why not complement this ensemble with a pair of white leather chelsea boots? So as you can see here, it's a kick-ass, not to mention spring-ready, getup to have in your seasonal rotation. Certainly a savvy idea when it comes to style tips for teenage boys.