Natura Xtra Light 2Sn Prothesis 400Product Details New ultra lightweight silicone formulation makes the weight of the form nearly 40 % less than standard silicone forms of the same shapes and size, while maintaining standards for durability. Slightly firmer lightweight silicone in the back layer helps stabilise the form when worn in a bra pocket. Patented Comfort+ temperature equalising material integrated into the back layer regulates fluctuations in body heat to help reduce