This classic and casual combination of a black and white vertical striped suit and a grey turtleneck is capable of taking on different nuances depending on how you style it. For something more on the dressier end to finish off this look, add black leather loafers to the equation. If you're searching for a kick-ass winter-to-spring outfit, this one fits the bill. This combination demonstrates how to remain stylish as you mature into your 30s.