I thought that before my consultation aswell, I think it’s in america they use saline alot. I heard it was alot cheaper than silicone & thought I was going to have to go with saline, so was very pleased to find out they use silicone in uk & all are about the same price! The saline is supposed to feel really unatural & make a plopping noise when you walk!! ha ha, I don’t know how true that is though! xx