If you're all about feeling relaxed when it comes to menswear, this combo of a blue turtleneck and charcoal jeans will totally vibe with you. To add an extra dimension to your ensemble, complete this ensemble with charcoal suede chelsea boots. When it comes to dressing for autumn, nothing beats a neat outfit that transitions easily between seasons. If you frequently wonder how to dress as a man in his 20s, this getup is a good illustration.