unavoidable, even if a designer suggests characters perform naked it is still a costuming and design decision - it is part of the performance image.

Costume in performance is an integral part of the scenic image, to many actors it is the final jigsaw in a complex character, often costume will restrict or liberate movement helping to sculpture the physical nature of a character and performance.

Designers convey their ideas in a number of formats and media, often choosing media that best conveys the textures and qualities of shape a particular costume offers. However the costume sketch is very much a "sketch" it is not seen as a work of art in itself, it is a means to communicate to the performer, director and wardrobe team, all of whom look for different things in the sketch.