Overskirt

An overskirt, or peplum, is a type of elongated hem resembling a short skirt, worn to lie over another garment, either another skirt such as a petticoat or underskirt, or breeches.
Overskirts may serve various purposes, ranging from protecting the underlying clothing from mud and dirt, to being purely a decorative feature. Overskirts have been popular as a clothing detail for both men and women during various periods of history. More recently, they are associated with women's jackets and blouses, included in closely fitted clothing, where they accentuate a narrow waist, or light materials to create a casual sense of elegance.