Princess seams are long rounded seams sewn into women's blouse

Blouse

A blouse is a loose-fitting upper garment that was formerly worn by workmen, peasants, artists, women and children. It is typically gathered at the waist so that it hangs loosely over the wearer's body. Today, the word most commonly refers to a woman's shirt but can also refer to a man's shirt if...

s or shirt

Shirt

A shirt is a cloth garment for the upper body. Originally an undergarment worn exclusively by men, it has become, in American English, a catch-all term for almost any garment other than outerwear such as sweaters, coats, jackets, or undergarments such as bras, vests or base layers...

s to add shaping or a tailored fit to closely follow a woman's shape. They are sewn into the front and/or back of a shirt, and extend from the waist up to the arms.

The princess seam style of dress

Dress

A dress is a garment consisting of a skirt with an attached bodice or with a matching bodice giving the effect of a one-piece garment.Dress may also refer to:*Clothing in general*Costume, fancy dress...

 needs no waistline

Waistline

Waistline refers to:*the waist on a human body — the narrow point of the abdomen between the ribcage and hipsor*Waistline — the line of demarcation between the upper and lower portions of a garment, which notionally corresponds to the natural waist but may vary with fashion from just...

 at all, since it does its shaping without dart

Dart (sewing)

Darts are folds sewn into fabric to help provide a three-dimensional shape to a garment. They are frequently used in women's clothing to provide a fit that closely follows the shape of the wearer.Two kinds of darts are common in blouses for women:...

s, by joining edges of different curvature. The resulting "princess seams" typically runs from the shoulder

Shoulder

The human shoulder is made up of three bones: the clavicle , the scapula , and the humerus as well as associated muscles, ligaments and tendons. The articulations between the bones of the shoulder make up the shoulder joints. The major joint of the shoulder is the glenohumeral joint, which...

 (or under the arm) curving gently over the bust

Breast

The breast is the upper ventral region of the torso of a primate, in left and right sides, which in a female contains the mammary gland that secretes milk used to feed infants.Both men and women develop breasts from the same embryological tissues...

 point and down to the lower hem

Hem

To hem a piece of cloth is to sew a cut edge in such a way as to prevent unraveling of the fabric.There are many different styles of hems of varying complexities. The most common hem...

. This creates a long, slimming look, often seen in dresses with an "A-line

A-line

An A-line skirt is a skirt that is fitted at the hips and gradually widens towards the hem, giving the impression of the shape of a capital letter A. The term is also used to describe dresses and coats with a similar shape.-History:...

" silhouette.