A pencil skirt usually has a vent at the back, or less commonly at the sides, since its slim, narrow shape can otherwise restrict the movement of the wearer.
Pencil skirts made from stretchy knitted fabrics do not normally need vents or pleats.
Typical shoes for wearing with a pencil skirt are pumps, or high heels, with sheer stockings or tights.
Pencil skirts can also be worn with flats for a more casual, youthful appearance that echoes the 1960s.
The French designer Christian Dior introduced the classic modern pencil skirt in his 1954 Autumn Winter collection.