A pencil skirt is a slim-fitting skirt that falls to the knee or below and is usually made of lightweight fabric. It has a straight, narrow silhouette and often features a slit at the back. The pencil skirt is a timeless wardrobe staple that can be dressed up or down depending on the occasion. It can be worn with just about any top, from blouses to t-shirts, and paired with heels or flats for an effortlessly chic look.