What is a Princess Cut?

A princess cut, more commonly described as princess seams or princess-line construction, is a garment making technique that uses long, shaped vertical seams to create a close, contoured fit. Rather than relying mainly on darts to shape fabric around the bust and waist, curved panels are sewn together to follow the body's shape.

Princess seams are most commonly used in women's dresses, tops, jackets and other fitted garments.

What is a princess seam?

A princess seam is a long vertical seam used to shape a garment.

Unlike a simple straight seam joining two flat pieces of fabric, the edges of princess panels are carefully curved. When those curved edges are sewn together, the resulting garment gains three dimensional shape through areas such as the bust, waist and hips.

Princess seams typically run vertically from either the shoulder or armhole, over the bust and down towards the hem or waist.

The result is a fitted silhouette with long, relatively uninterrupted vertical lines.

Why is it called a princess cut?

The princess line has its origins in 19th-century fashion and is generally associated with dresses developed during the 1860s and 1870s.

The style is commonly linked with Princess Alexandra of Denmark, who became Princess of Wales after marrying the future King Edward VII.

Early princess line dresses were notable because the bodice and skirt could be constructed with long panels running down the body rather than having the visually distinct horizontal waist seam typical of many dresses of the period.

The technique evolved considerably, but those long, body shaping vertical seams remain the defining characteristic.

How does a princess cut create shape?

Fabric is flat. Bodies, inconveniently for pattern makers, are not. 😄

Garment construction therefore needs some way of removing or redistributing fabric so that a flat textile can follow the contours of the body.

One traditional solution is the dart, a wedge shaped section of fabric that is folded and sewn to create shape.

Princess construction approaches the problem differently.

Instead of concentrating the shaping into individual darts, the shaping is incorporated into the curved edges of adjoining garment panels. Once those panels are sewn together, the seams contour around the body.

This allows quite substantial shaping to be incorporated into what appears to be a simple vertical seam.

Princess seams vs darts

Both techniques can be used to create fitted clothing, but they achieve the result differently.

Darts remove fullness at specific points. They're commonly found around the bust, waist and back of fitted garments and usually end somewhere within the garment rather than continuing from edge to edge.

Princess seams incorporate the shaping into longer seams joining separate panels of fabric.

A garment can also use a combination of seams, darts and other techniques, so these aren't mutually exclusive construction methods.

Where do princess seams start?

There are two particularly common versions.

Shoulder princess seams begin at the shoulder, travel down over or close to the bust and continue vertically down the garment.

Armhole princess seams begin at the armhole, curve over the bust and then continue downwards.

Both perform essentially the same job: creating shape through the curved seam rather than relying entirely on a separate bust dart.

What garments use princess seams?

Princess seams are particularly common in garments where a shaped or tailored fit is important.

You'll find them in:

• dresses
• fitted shirts and tops
• corporate shirts
• jackets and blazers
• coats
• vests
• uniforms
• formalwear

They aren't restricted to dresses, despite the technique's historical origins.

In contemporary clothing, you may encounter princess seams without even noticing them, particularly in tailored corporate garments where the seams simply appear to be part of the overall panel construction.

Why are princess seams used in women's clothing?

One of their major advantages is the amount of shaping they can provide while maintaining relatively clean lines.

Because the seam travels vertically through a large section of the garment, designers have considerable scope to control the fit through the bust, waist and hips.

Those long vertical seams can also contribute to the visual design of a garment. Contrast panels, piping or different fabrics can be incorporated along panel lines to emphasise the construction.

For uniforms, this can create a fitted appearance while also providing opportunities to introduce brand colours or contrasting design details.

Princess seams in uniforms and corporate clothing

Princess seams are frequently found in women's corporate shirts, blouses, dresses, jackets and other tailored uniform garments.

They're particularly useful when manufacturers want to create a more shaped silhouette rather than simply producing a smaller version of a traditionally straight cut garment.

When you're comparing uniform styles, panel construction is one of the reasons two garments made from very similar fabrics can fit quite differently.

A style incorporating princess seams may provide more shaping through the body, while another design may deliberately offer a straighter or more relaxed silhouette.

Is a princess cut the same as a princess seam?

They're generally referring to the same underlying method of garment shaping, although princess seam and princess line construction are more technically descriptive terms.

"Princess cut" is often used more broadly to describe a garment with this fitted panelled construction.

And just to make fashion terminology more frustrating, princess cut also has an entirely different meaning in jewellery, where it describes a square shaped diamond or gemstone cut.

In clothing, we're talking about those characteristic long, curved seams that shape the garment around the body.