Kiwi brand leather insoles. These I find are really good.
These cost at Tesco £6, at Waitrose £6, at Wilko £4.
50% is remarkable. Here are a couple of remarks:
It could be worth walking an extra mile to save 50% eh?
One can always vote with one’s feet.
I have no connection with Kiwi or the shops mentioned. I am simply reporting what I have experienced.