I want to hide my bra straps under a sleeveless tee shirt. I don't want to try strapless!
So, I found an old bra with detachable straps and simply crossed them over, to take them off my visible shoulders. What agony! My neck was cut raw.
Then I tried a normal bra using a plastic buckle to hold my straps together across my back. But I couldn't really lengthen my straps enough, and the buckle was almost impossible to adjust. And I felt trussed up like a chicken.
Also, the bra strap cross tension meant that I had to go to my tightest set of hooks to keep my band tight, and again, bra agony!
Finally, I tried clear bra straps, but these clinged to my back like superglue.