I must have bought mine about 15 or more years ago, possibly more than 20. I have no idea what the brand is, only they’re silicone gel filled – like DeeAnn Hopings has – inside a polyurethane heat welded capsule, teardrop shaped. They were probably listed at the time anyway as mastectomy forms. They did come in a cloth covering with a 1/2″ foam pad behind each. I ditched the pads.
I’ve been happy with them for the most part, well, except for an accident where I had them in the trunk of my car and was rear ended and one, well, sort or exploded inside the trunk. I refilled it water balloons and it works adequately.