If you want more options than the convertible bra you have allows, you can always sew more loops into it for your straps to hook into. Make sure where you are putting the loops will work for the style of bra you have.
The image above compares a bra that can go strapless with one that can’t. If you were to try to add loops into the one that can’t go strapless anywhere in the front that isn’t at the top of the peaked cups you would end up with those bits sticking out.
- Get an old bra strap or buy a spare one (you can get them from sewing or lingerie stores). Make sure it is the right width for the straps you will be hooking into it. Cut a short piece about 2.5cm / 1 inch long.
- Fold it in half and serge/overlock it to stop it fraying. If you don’t have an overlocker go over it a few times with a zig zag stitch.
- Sew it in place onto the bra, 2 lines of stitching will hold it in place well.
- Done, you can hook the strap through it now.