35% Lighter than traditional Sslicone. A teardrop form best for more moderate surgery. This form is best when little tissue has been removed under the arm. When weight has bothered you ... made you tired .... made you warm ... this form will help you feel better because it is 35% lighter. Adjusts to body temperature so it always feels like a part of you. Hollow back to fit various types of surgery. Properly weighted to restore body balance. Tapered edges for smoothness under clothing. Not affected by chlorine or salt water. Hand wash in lukewarm water with mild soap, towel dry. Comes with a fitted cotton/spandex cover. Additional covers available. Imported.