Tailored coat or blazer: A neutral color such as black, navy, or camel would be a good option, as it will go well with other items in your wardrobe. Dress pants: Choose a wool or flannel material for added warmth and comfort. A dark color such as black, navy, or gray would be a safe choice for a professional look. Dress shirt: A white or light blue dress shirt is a classic option. If you prefer, you can opt for a button-up sweater or a turtleneck.