When it comes to casual Fridays, different workplaces will have various dress codes, but in general, you should look put-together and appropriate no matter the day of the week. Enter: the khaki blazer. It’s versatile, casual and still professional, as it allows you to have a refined, yet laid back look that is office and warm-weather friendly. Dress it down by pairing it with dark-wash denim and a bright red polo for a nice pop of color. #TGIF.