Trulife 478 SILK Xtend breast form is an asymmetrical breast form that offers more projection and fullness than SILK A Supreme. Recommended for use with extensive radical mastectomy surgeries. SILK defines what a breast form should be; soft and natural. A new innovative skin is silky-soft and offers unparallel softness and suppleness. All SILK forms offer a natural drape not found with other breast forms. Natural colored pigment produces a color that blends well with various skin tones. Fit: Shallow to Average. Sizes: 1-14. (See Trulife breast forms sizing charts) Choose right or left.