Effortlessly blurring the line between sharp and laid-back, this pairing of a tan cotton blazer and dark green cargo pants is sure to become one of your go-tos. To introduce a little flair to your outfit, introduce black leather derby shoes to the equation. You're sure to always look nice even despite the crazy heat if you have this look as your go-to formula. Overall, a smart pick if we're talking fashion for men in their 20s.