An olive double breasted blazer and jeans are absolute staples if you're putting together a smart casual wardrobe that holds to the highest fashion standards. To give your overall ensemble a sleeker spin, why not introduce dark brown derby shoes to the equation? This ensemble isn't a hard one to score and it's summer-friendly, which is most important when it's blazing hot outside. Outfit inspo like this will help you stay incredibly fashionable even at 60.