When we think of fall fashion, vivid images come to mind: creamy cable-knit sweaters, brown knee-high boots, cozy shackets and, of course, gorgeous denim shirts. Chambray button-downs are just so easy to pair with anything in our wardrobe, not to mention, they're ideal for layering in transitional weather. Plus, they perfectly capture that quintessential southern style. We're not the only ones obsessed with the look - Reese Witherspoon apparently is, too.