Altimate
I had a similar pair, they had a transparent toe post - you sort of put your big toe in first and the top strap hid it. Remarkably comfy, if you can wear toe post sandals. I loved them.
Please could you post a link to the similar pair. I'm still mystified.
Do you mean a straight toe post connecting the sole of the shoe to the strap? Or a loop for the big toe?
And I still don't see how it would help because the strap is below the bunion line. Like if you had a flip flop (with a toe post) but the only straps were below the bunion line I can't see how they would stay on?