This casual combo of a bomber jacket and a long sleeve t-shirt is extremely easy to pull together without a second thought, helping you look seriously stylish and prepared for anything without spending a ton of time rummaging through your closet. If you're clueless about how to finish off, introduce a pair of navy canvas slip-on sneakers to the equation. You can be sure this look is ideal for fluctuating autumn weather. Those wondering how to wear modern casual looks as you make your way through your adolescence, this getup should answer your question.