This laid-back combination of a sweatshirt and a white tank is a safe option when you need to look cool but have no time to plan an outfit. Let your styling credentials really shine by finishing your look with white canvas low top sneakers. There's no nicer way to cheer up a gloomy autumn day than a neat ensemble like this one. Those wondering how to sport modern off-duty looks as you move through your teenage years, this ensemble should answer your question.