The Amoena Essential Light 2S Breast Form 442, formerly the Tria Aire,features a soft, lightweight silicone makes the form 30% lighter. It is ideal for a woman with osteoporosis, arthritis or lymphedema. The Amoena Essential Light 2S Breast Form 442 can also be worn as a leisure or sports form. The Amoena 442 breast form is a versatile style that fits many women.