This outfit with a grey long sleeve t-shirt and sweatpants isn't hard to pull off and is open to more sartorial experimentation. Why not introduce a pair of white canvas low top sneakers to this ensemble for an added touch of class? Come blazing hot summer days you want to feel cool and seriously stylish –– this look is just the one you need. Those who wonder how to sport cool casual dressing as you pass the big three-oh, this ensemble should answer your question.