Marrying a blazer with a dark green turtleneck is a savvy pick for an effortlessly smart ensemble. Let your sartorial sensibilities truly shine by finishing your outfit with black leather chelsea boots. On not-so-bone-chilling days, you can wear this transitional ensemble and look absolutely amazing. As you're going from your 20s to your 30s, you want to start dressing in a more refined manner. That's when inspiration like this is very useful.