I have Motif Medical from Amazon
Cant speak to the fancier ones, but I just got one off temu. It's not for long walks/exercise, but good for when you're stepping out and need to be on your feet for a while
I did with first baby - just from Amazon xx
I got one from the physio for PGP and I don’t find mine helps very much to be honest!😩
I’ve got one from MomCozy and one from Amazon. Gives temporary relief but don’t think my baby likes it because she sometimes kicks me more