Trapunto quilting

A puffy, decorative feature, trapunto utilizes at least two layers, the underside of which is slit and padded, producing a raised surface on the quilt.

[2] Trapunto is often confused with the relatively similar techniques used in making traditional whole cloth Provençal quilts that were developed from the 17th century onwards in France.

[3] One of the earliest surviving examples of trapunto quilting is the Tristan Quilt in the Victoria and Albert Museum, a linen quilt representing scenes from the story of Tristan and Isolde which was made in Sicily during the second half of the 13th century.

The technique was used for the inner-tunic collars worn in Starfleet uniforms from Star Trek II: The Wrath of Khan.

As of the 1980s, functional trapunto machines were rare, and the specialized needles which they employed were even rarer.