Comfort is always key. As much as I love layering (who doesn't?), I don't necessarily agree with how bulky layers look on my petite frame. Enter Uniqlo's HEATTECH - everyday basics with built-in thermal resistance to keep you warm to the very core. Just because they can be undergarments, doesn't mean they have to be. Read on to see how I styled my three favorite HEATTECH items in stylish, practical ways.