Taking the next step - buying prothesis

I also had a bilateral mastectomy in 2017. I found that the soft "stuffies"....I got the care package ones, plus I had crocheted ones as well as a pair of Knitted Knockers from a fellow knitter. With all of them, if I lifted my arms just a little, the whole bra, foam titties and all, would end up just under the collar bones. I was then fitted with two Amoena silicone gel prosthetic breasts and as they are heavier and fit closely to what's left of my chest, they more or less stay put. Having said that, even when I had my own 18D breasts and wore a bra, I was always fiddling with it to bring it down. I have very narrow and somewhat sloping shoulders and so had to have the straps fairly tight or the shoulder straps would just slip down. If I had better shoulders, this would probably not be an issue at all and all would stay where it had been placed. They cost me 2 X $400.00 and the entire $800.00 was reimbursed to me, in full by medicare within a week of the claim.