If you're looking for a laid-back but also sharp ensemble, opt for a navy and green plaid long sleeve shirt and a white crew-neck t-shirt. To bring a little fanciness to your look, add a pair of black leather derby shoes to the equation. Seeing as it's baking hot outside, this look appears perfect and entirely summer-friendly. Wondering what you should wear as you step into your 50s? This combination is a perfect example.