Unfortunately the ridge around the heel of the insoles makes my foot push forward in my shoe and makes my heel slip in and out. This is not rectified by tightening the laces. I do not think these are a good design, for me at least.
Having reported this to the supplier a full refund was provided without any fuss.
These insoles have been great. My feet tend to get very tired and often I get pains in my heals but these give me great support where I need it and since wearing them my feet feel much more comfortable.
Bought these a week before I ran the London Marathon as I'd been getting foot pain at 14 miles in training and was panicking about it ruining my marathon experience. They were bliss under my feet!! Cushioned and bouncy for all 26.2 miles Didn't feel any need to whip my trainers off afterwards as they were so comfortable.