ABC 11672 MyForm Shaper features the classic triangle footprint. Ideal for women undergoing reconstructive surgery with tissue expansion or after reconstruction and uneven breasts and Poland’s syndrome. Designed with a special back layer compartment to allow for adjustability and fitting versatility with the use of our hypoallergenic fiber fill. Included in each ABC MyForm package is a single pouch of hypoallergenic fiber fill. Sizes available are 3-12 (See ABC's sizing chart or call 1-866-699-9612 for assistance M-F 9am-5pm Pacific Time Zone). Formula: Crafted with Lightweight silicone. Lightweight shapers lessen the weight on the chest wall and shoulders for a more comfortable fit.