It’s often tricky to define what people mean by smart casual. Do you just wear some jeans with a dress shirt? Slip on some trainers with your suit? There’s a little more thought needed than just that, but when done correctly, smart casual is one of the most versatile styles around. You’re probably wondering what the smart casual dress code for men is? It basically means you’re pairing together pieces that aren’t too smart and not too casual, simple right? Well in reality, it’s not that easy.