We're big fans of boots in every variety, but a tall boot with a flat-to-the-floor sole or slightly chunky heel is a closet necessity. They instantly dress up denim, and they can be worn running errands or commuting without killing your feet. Plus, they're much more practical than a sky-high heeled option when winter is still in full force.

From over-the-knee to just below it, these gorgeous flat boots will get you through the rest of winter -- and even into spring.

Saint Laurent gave us an entire collection's worth of flat, tall boots with plenty of detail. Our standout favorite was easily this silver glitter encrusted pair.

Margot Robbie paired her classic flat black boots with a warm turtleneck and shearling-lined coat at the Sundance Film Festival.

Get a similar look with this pair from Ted Baker London.

The collection at Dolce & Gabbana was medieval fairy-tale themed -- from the hooded capes right down to these chainmail-inspired flat boots.

Try these Jeffrey Campbell Valdez Studded Leather Boots, $420, for a similar look at a more one-season-only price point.

At first glance, the shoes at Rick Owens look like ordinary sneakers. But a closer look reveals the flat soles turn into over-the-knee leather boots that almost look comfortable enough for some high-fashion jogging.