This laid-back combination of a blazer and a white long sleeve t-shirt is a winning option when you need to look casually stylish in a flash. Tap into some David Gandy dapperness and class up your getup with beige suede derby shoes. Both stylish and season-appropriate, you can wear this outfit throughout the summer season. Your teenage years is a great time to learn how to dress stylish. And it's easy with examples like this.