I googled the style names, those all look pretty good as they all have a back or ankle strap. I have tried on several Jimmy Choo slide wedges (no back or ankle strap) and they were very cute, but uncomfortable and impossible to keep on my foot due to the vamp not coming up far enough on the foot. So I would just watch out for low cut vamps on wedges that don't have ankle or back straps.
Thanks for the reply, DreamingBeauty. Which particular wedges did you try on?
I tried the ones below, which are 100 height and have back straps. But they are still difficult to keep on the foot also because , as you say, the vamp is so tiny and forward that it barely keeps my foot in. I'm wondering if a lower height shoe like an 80 might solve this problem? Or would it be better to getI a similar model with an ankle strap?