Amoena 442 Essential Light 2S Breast Form is a remarkably lightweight silicone in a single layer form makes it 35% lighter than traditional breast forms a must for women with weakened backs or osteoporosis arthritis or lymphedema. Comfortable to wear this form is triangle shaped and fits average figures. Available sizes are 1-17 See Amoena Breast Forms sizing chart. This is an average profile fit. Available Colors are ivory or tawny. For Mastectomy Accessories order Amoena 160.