A blazer and a v-neck t-shirt are absolute menswear must-haves that will integrate perfectly within your current off-duty rotation. Why not add light blue high top sneakers to the equation for a more laid-back twist? So if it's an extremely hot summer day and you want to look stylish without exerting much effort, this outfit will do the job in no time flat. All in all, a great example of casual style for teen boys.